Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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