Paul, E. A., & Clark, F. E. (1996). Soil microbiology and biochemistry (2ª ed.). Academic Press.
Cita Chicago Style (17a ed.)Paul, Eldor Alvin, y F. E. Clark. Soil Microbiology and Biochemistry. 2ª ed. San Diego: Academic Press, 1996.
Cita MLA (8a ed.)Paul, Eldor Alvin, y F. E. Clark. Soil Microbiology and Biochemistry. 2ª ed. Academic Press, 1996.
Precaución: Estas citas no son 100% exactas.