As shown in the example below, there are a wide variety of ways of inserting references into text.

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1 USE OF REFERENCES IN TERM PAPERS OCN Biogeochemical Systems All non-original ideas, data and interpretations in your term paper must be referenced. If you fail to do so, you leave yourself open to charges of plagiarism, one of the most serious academic transgressions. As shown in the example below, there are a wide variety of ways of inserting references into text. The presence of elevated dissolved CH 4 concentrations in rivers and bays has been noted ever since the first CH 4 measurements were made in aquatic systems [e.g., Lamontagne et al., 1973]. It has been established that even rivers without anthropogenic sources of CH 4 have dissolved CH 4 concentrations 1-2 orders of magnitude higher than typical open ocean seawater [e.g., Lamontagne et al., 1973; Wilkness et al., 1978; de Angelis and Lilley, 1987; Lilley et al., 1996]. As a result, natural riverine CH 4 has been tracked for distances of 750 km into the open ocean [Jones and Amador, 1993]. However, published estimates of global atmospheric methane fluxes have not considered the specific contributions of rivers or estuaries [e.g., Watson et al., 1992; Prather et al., 1995]. In general, it appears that CH 4 in advectively dominated estuaries is largely from riverine input, while in more stagnant systems there can be significant inputs from estuarine sediments and wetlands [e.g., King and Wiebe, 1978; de Angelis and Lilley, 1987; Harriss et al., 1982; Sansone et al., 1998]. However, the source of CH 4 in river water is not well established, although it is possible that groundwater from organic rich forest soils may be important [Lilley et al., 1996]. Methane carbon stable isotopic ratios (δ 13 C-CH 4 ) were measured ("0.5 per mil) using the methods of Popp et al. [1995] and Sansone et al. [1997]. Isotopic ratios are reported here versus the Pee Dee belemnite (PDB) standard using conventional delta notation [Craig, 1957]. Methane concentrations were determined ("1%) by purge-and-trap techniques in combination with gas chromatography and flame ionization detection. The salinity of the Columbia River and Kaneohe Bay samples was measured ("0.05 psu) using an AGE model 2100 induction salinometer; the salinity of other samples was determined ("0.35 psu) using a Oakton WD conductivity meter calibrated with seawater that had been previously analyzed by the induction salinometer. There are a wide variety of styles for reporting references. A very detailed description is given below from the American Geophysical Union (AGU). Alternative styles are also given at the end of this document. Use whichever style you prefer, but be consistent throughout your term paper. There are a wide variety of styles for reporting references. A very detailed description is given below from the American Geophysical Union (AGU) ( tools/journals/pdf/agu_author_guide.pdf). Alternative styles are also given at the end of this document. Use whichever style you prefer, but be consistent throughout your term paper.

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5 Alphabetizing references Entries in the reference list are arranged alphabetically by the last name of the author, editor, compiler, or the name of the issuing organization. For the first author only, the surname is given first, followed by initials. Names of any coauthors appear in regular order: initials precede the author's surname (see examples). Multiple references by the same author are listed in the following order: (1) works where the individual or organization is the only author, listed in order of publication; (2) works where the individual is the first of two authors, arranged alphabetically by the second author's name and date of publication; (3) works where the individual is the first of three or more authors, listed in order of publication. Within each category, the oldest publication is always listed first. Abbreviating journal titles AGU uses guidelines established by the Chemical Abstracts Service Source Index in abbreviating the names of serial publications and reports. One word titles are not abbreviated. Articles, conjunctions, prepositions, hyphens, parentheses, commas, and accents are omitted in abbreviated titles. Apostophes in transliterated titles are retained. Correct format for AGU journal titles: Global Biogeochem. Cycles; Geophys. Res. Lett.; J. Geophys. Res.; Paleoceanography; Tectonics; Water Resour. Res.; Rev. Geophys.; Radio Sci.; Eos Trans. AGU Other examples: AAPG Bull.; Adv. Space Res.; Anal. Chem.; Ann. Geophys.; Ann. Glaciol.; Appl. Opt.; Appl. Spectrosc.; Astrophys. J.; Bull. Int. Assoc. Eng. Geol.; Bull. Mar. Sci.; Can. J. Phys.; Chem. Geol.; Contrib. Mineral. Petrol.; Earth Planet. Sci. Lett.; Geochim. Cosmochim. Acta; Geol. Soc. Am. Bull.; IEEE Trans. Geosci. Remote Sens.; IEEE Trans. Nucl. Sci.; Int. J. Rock Mech. Min. Sci. Geomech. Abstr.; J. Atmos. Chem.; J. Atmos. Oceanic Technol.; J. Atmos. Sci.; J. Atmos. Terr. Phys.; J. Fluid Mech.; J. Geomagn. Geoelectr.; J. High Resolut.Chromatogr.; J. Petrol.; J. Phys. Oceanogr.; Mon. Weather Rev.; Phys. Fluids; Philos. Trans. R. Soc. London Ser. A; Planet. Space Sci.; Q. J. R. Meteorol. Soc.; Remote Sens. Environ.

6 OTHER EXAMPLES OF REFERENCE STYLES Limnology and Oceanography: References in the text are in the form: (Smith 2002) (Smith and Brown 2002) (Smith et al. 2002) Article: Fenchel, T Protozoan filter feeding. Prog. Protistol. 1: Book: Stumm, W., and J. Morgan Aquatic chemistry, 2nd ed. Wiley. Chapter: Codispoti, L. A Nitrogen in upwelling systems, p In E. J. Carpenter and G. Capone [eds.], Nitrogen in the marine environment. Academic. Coral Reefs: References in the text are in the form: (Smith 2002) (Smith and Brown 2002) (Smith et al. 2002) Journal papers: Marsh LM, Bradbury RH, Reichelt RE (1984) Determination of the physical parameters of coral distributions using line transect data. Coral Reefs 2: 175B180 Books: Michelsen A (1974) Hearing in invertebrates. In: Keidel WD, Neff WD (eds) Auditory system. Springer, Berlin Heidelberg New York (Handbook of sensory physiology, vol V/1, pp ) Symposium volumes: Hatcher Al (1985) The relationship between coral reef structure and nitrogen dynamics. Proc 5th Int Coral Reef Symp 3: 407B413.