Citazione Stile APA (7a Edizione)

Wagner, R. H. (1978). Man and the environment. (3rd ed.). W W Norton.

Citazione stile Chigago Style (17a edizione)

Wagner, Richard H. Man and the Environment. 3rd ed. New York: W W Norton, 1978.

Citatione MLA (9a ed.)

Wagner, Richard H. Man and the Environment. 3rd ed. W W Norton, 1978.