Citazione Stile APA (7a Edizione)

Foin, T. C. J. (1976). Ecological systems and the environment. Houghton Mifflin.

Citazione stile Chigago Style (17a edizione)

Foin, Theodore C. Jr. Ecological Systems and the Environment. Boston: Houghton Mifflin, 1976.

Citatione MLA (9a ed.)

Foin, Theodore C. Jr. Ecological Systems and the Environment. Houghton Mifflin, 1976.