APA (7th ed.) Citation

Hallett, G. H. (1940). Proportional representation - the key to democracy (2., and rev. ed.). National Municipial League.

Chicago Style (17th ed.) Citation

Hallett, George Hervey. Proportional Representation - the Key to Democracy. 2., and rev. ed. New York: National Municipial League, 1940.

MLA (9th ed.) Citation

Hallett, George Hervey. Proportional Representation - the Key to Democracy. 2., and rev. ed. National Municipial League, 1940.