Cita APA (7a ed.)

Odegard, P. H., & Helms, E. A. (1947). American politics, a study in political dynamics (2d ed.). Harper.

Cita Chicago Style (17a ed.)

Odegard, Peter H., y E. Allen Helms. American Politics, a Study in Political Dynamics. 2d ed. New York: Harper, 1947.

Cita MLA (8a ed.)

Odegard, Peter H., y E. Allen Helms. American Politics, a Study in Political Dynamics. 2d ed. Harper, 1947.