Citazione Stile APA (7a Edizione)

Hyams, E. (1976). Soil and civilization. Harper Colophon Books.

Citazione stile Chigago Style (17a edizione)

Hyams, Edward. Soil and Civilization. New York ; Hagerstown ; San Francisco ; London: Harper Colophon Books, 1976.

Citatione MLA (9a ed.)

Hyams, Edward. Soil and Civilization. Harper Colophon Books, 1976.