International Council for Science. Scientific Committee on Problems of the Environment, ebrary, Inc, Mosier, A., Syers, J. K., & Freney, J. R. (2004). Agriculture and the nitrogen cycle: Assessing the impacts of fertilizer use on food production and the environment. Island Press.
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Chicago-referens (17:e uppl.)
International Council for Science. Scientific Committee on Problems of the Environment, Inc ebrary, Arvin Mosier, John K. Syers, och J. R. Freney. Agriculture and the Nitrogen Cycle: Assessing the Impacts of Fertilizer Use on Food Production and the Environment. Washington, D.C.: Island Press, 2004.
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MLA-referens (9:e uppl.)
International Council for Science. Scientific Committee on Problems of the Environment, et al. Agriculture and the Nitrogen Cycle: Assessing the Impacts of Fertilizer Use on Food Production and the Environment. Island Press, 2004.
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Varning: dessa hänvisningar är inte alltid fullständigt riktiga.