Style de citation APA (7e éd.)

Hallett, G. H., & Hoag, C. G. (1940). Proportional representation, the key to democracy (2d and rev. ed., 1940.). National municipal league.

Style de citation Chicago (17e éd.)

Hallett, George Hervey, et Clarence Gilbert Hoag. Proportional Representation, the Key to Democracy. 2d and rev. ed., 1940. New York city: National municipal league, 1940.

Style de citation MLA (8e éd.)

Hallett, George Hervey, et Clarence Gilbert Hoag. Proportional Representation, the Key to Democracy. 2d and rev. ed., 1940. National municipal league, 1940.