Style de citation APA (7e éd.)

Spengler, J. J., & Duncan, O. D. (1956). Population theory and policy: Selected readings. Free Press.

Style de citation Chicago (17e éd.)

Spengler, Joseph John, et Otis Dudley Duncan. Population Theory and Policy: Selected Readings. Glencoe, Ill: Free Press, 1956.

Style de citation MLA (9e éd.)

Spengler, Joseph John, et Otis Dudley Duncan. Population Theory and Policy: Selected Readings. Free Press, 1956.