APA-Zitierstil (7. Ausg.)

Commoner, B. (1972). The closing circle: Confronting the environmental crisis (1. publ.). Cape.

Chicago-Zitierstil (17. Ausg.)

Commoner, Barry. The Closing Circle: Confronting the Environmental Crisis. 1. publ. London: Cape, 1972.

MLA-Zitierstil (9. Ausg.)

Commoner, Barry. The Closing Circle: Confronting the Environmental Crisis. 1. publ. Cape, 1972.