APA Edition Citation

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

Chicago Edition Citation

Spengler, Joseph J., and Otis Dudley Duncan. Population Theory and Policy: Selected Readings. Glencoe, Illinois: Free Press, 1956.

MLA Edition Citation

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

Warning: These citations may not always be 100% accurate.