Cita APA (7a ed.)

Stevenson, F. (1982). Humus chemistry: Genesis, composition, reactions. Wiley & Sons.

Cita Chicago Style (17a ed.)

Stevenson, F.J. Humus Chemistry: Genesis, Composition, Reactions. New York [etc.]: Wiley & Sons, 1982.

Cita MLA (9a ed.)

Stevenson, F.J. Humus Chemistry: Genesis, Composition, Reactions. Wiley & Sons, 1982.