APA (7th ed.) Citation

Childs, H. L., & Bernays, E. L. (1934). A reference guide to the study of public opinion. Princeton University Press.

Chicago Style (17th ed.) Citation

Childs, Harwood L., and Edward L. Bernays. A Reference Guide to the Study of Public Opinion. Princeton: Princeton University Press, 1934.

MLA (9th ed.) Citation

Childs, Harwood L., and Edward L. Bernays. A Reference Guide to the Study of Public Opinion. Princeton University Press, 1934.