Cita APA (7a ed.)

Dunwiddie, W. E., & Kidger, H. (1962). Problems of democracy. Ginn and Company.

Cita Chicago Style (17a ed.)

Dunwiddie, William E., y Horace Kidger. Problems of Democracy. Boston [etc.]: Ginn and Company, 1962.

Cita MLA (9a ed.)

Dunwiddie, William E., y Horace Kidger. Problems of Democracy. Ginn and Company, 1962.