APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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