Cita APA (7th ed.)

Garvey, G. (1972). Energy, ecology, economy ([1st ed.].). Norton.

Cita Chicago (17th ed.)

Garvey, Gerald. Energy, Ecology, Economy. [1st ed.]. New York: Norton, 1972.

Cita MLA (8th ed.)

Garvey, Gerald. Energy, Ecology, Economy. [1st ed.]. Norton, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.