Citazione Stile APA (7a Edizione)

Stevenson, F. J. (1982). Humus chemistry: Genesis, composition, reactions. John Wiley and Sons.

Citazione stile Chigago Style (17a edizione)

Stevenson, F. J. Humus Chemistry: Genesis, Composition, Reactions. New York: John Wiley and Sons, 1982.

Citatione MLA (9a ed.)

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