MacDonald, J. G., & Nielsen, D. R. (1978). Nitrogen in the environment. New York: Academic Press.
Chicago Style CitationMacDonald, J. G., and Donald R. Nielsen. Nitrogen in the Environment. New York: Academic Press, 1978.
MLA CitationMacDonald, J. G., and Donald R. Nielsen. Nitrogen in the Environment. New York: Academic Press, 1978.
Warning: These citations may not always be 100% accurate.