Citazione Stile APA (7a Edizione)

(1979). Environment and resources (Revised ed.). Macmillan.

Citazione stile Chigago Style (17a edizione)

Environment and Resources. Revised ed. New York: Macmillan, 1979.

Citatione MLA (9a ed.)

Environment and Resources. Revised ed. Macmillan, 1979.