Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

Gore, Al. Earth in the Balance: Ecology and the Human Spirit. New York: Houghton Mifflin Company, 1992.

Cita MLA (8a ed.)

Gore, Al. Earth in the Balance: Ecology and the Human Spirit. Houghton Mifflin Company, 1992.