Cita APA (7th ed.)

Cook, R. C. (1962). Population and food supply. United Nations, Office of Public Information.

Cita Chicago (17th ed.)

Cook, Robert Carter. Population and Food Supply. [New York?]: United Nations, Office of Public Information, 1962.

Cita MLA (9th ed.)

Cook, Robert Carter. Population and Food Supply. United Nations, Office of Public Information, 1962.

Atenció: Aquestes cites poden no estar 100% correctes.