Cita APA (7th ed.)

Gore, A. (1992). Earth in the balance: Ecology and the human spirit. Rodale.

Cita Chicago (17th ed.)

Gore, Al. Earth in the Balance: Ecology and the Human Spirit. Nueva York: Rodale, 1992.

Cita MLA (9th ed.)

Gore, Al. Earth in the Balance: Ecology and the Human Spirit. Rodale, 1992.