Cita APA (7a ed.)

Stevenson, F. (1994). Humus chemistry: Genesis, composition, reactions (2nd ed.). Wiley & Sons.

Cita Chicago Style (17a ed.)

Stevenson, F.J. Humus Chemistry: Genesis, Composition, Reactions. 2nd ed. New York [etc.]: Wiley & Sons, 1994.

Cita MLA (9a ed.)

Stevenson, F.J. Humus Chemistry: Genesis, Composition, Reactions. 2nd ed. Wiley & Sons, 1994.