Cita APA (7a ed.)

Craven, A. O., & Johnson, W. (1950). The United States, experiment in democracy. Ginn.

Cita Chicago Style (17a ed.)

Craven, Avery Odelle, y Walter Johnson. The United States, Experiment in Democracy. Boston: Ginn, 1950.

Cita MLA (9a ed.)

Craven, Avery Odelle, y Walter Johnson. The United States, Experiment in Democracy. Ginn, 1950.