Cita APA

Paul, E. A., & Clark, F. E. 1. (1989). Soil microbiology and biochemistry. San Diego, Calif.: Academic.

Citación estilo Chicago

Paul, Eldor Alvin, y Francis Eugene 1910- Clark. Soil Microbiology and Biochemistry. San Diego, Calif.: Academic, 1989.

Cita MLA

Paul, Eldor Alvin, y Francis Eugene 1910- Clark. Soil Microbiology and Biochemistry. San Diego, Calif.: Academic, 1989.