APA (7th ed.) Citation

Odegard, P. H., & Helms, E. A. (1938). American politics: A study in political dynamics (1. ed.). Harper.

Chicago Style (17th ed.) Citation

Odegard, Peter H., and Elva Allen Helms. American Politics: A Study in Political Dynamics. 1. ed. New York [u.a.]: Harper, 1938.

MLA (9th ed.) Citation

Odegard, Peter H., and Elva Allen Helms. American Politics: A Study in Political Dynamics. 1. ed. Harper, 1938.