Cita APA (7th ed.)

Calhoun, D. H. (1973). The intelligence of a people. Princeton University Press.

Cita Chicago (17th ed.)

Calhoun, Daniel Hovey. The Intelligence of a People. Princeton, N.J.: Princeton University Press, 1973.

Cita MLA (8th ed.)

Calhoun, Daniel Hovey. The Intelligence of a People. Princeton University Press, 1973.