Cita APA (7a ed.)

Blaich, T. P., & Baumgartner, J. C. (1950). The challenge of democracy (3d. ed.). Harper.

Cita Chicago Style (17a ed.)

Blaich, Theodore Paul, y Joseph Cornelius Baumgartner. The Challenge of Democracy. 3d. ed. New York: Harper, 1950.

Cita MLA (8a ed.)

Blaich, Theodore Paul, y Joseph Cornelius Baumgartner. The Challenge of Democracy. 3d. ed. Harper, 1950.