Cita APA (7th ed.)

Petersen, W. (1975). Population, 3rd ed. (3rd ed.). Macmillan.

Cita Chicago (17th ed.)

Petersen, William. Population, 3rd Ed. 3rd ed. New York: Macmillan, 1975.

Cita MLA (9th ed.)

Petersen, William. Population, 3rd Ed. 3rd ed. Macmillan, 1975.