APA Citatie

Paul, E. A., & Clark. ,. F. E. (1996). Soil microbiology and biochemistry (2nd ed.). Academic Press.

Chicago Style citaat

Paul, E. A., en Clark. ,. F. E. Soil Microbiology and Biochemistry. 2nd ed. London: Academic Press, 1996.

MLA citatie

Paul, E. A., en Clark. ,. F. E. Soil Microbiology and Biochemistry. 2nd ed. Academic Press, 1996.