Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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