Cita APA (7th ed.)

Alexander, M. (1977). Introduction to soil microbiology (2nd ed.). Wiley.

Cita Chicago (17th ed.)

Alexander, Martin. Introduction to Soil Microbiology. 2nd ed. New York: Wiley, 1977.

Cita MLA (9th ed.)

Alexander, Martin. Introduction to Soil Microbiology. 2nd ed. Wiley, 1977.