APA (7e ed.) Bronvermelding

Goodman, W. (1956). The two-party system in the United States. Van Nostrand Company Inc.

Chicago (17e ed.) Bronvermelding

Goodman, William. The Two-party System in the United States. Princeton, New Jersey: Van Nostrand Company Inc, 1956.

MLA (9e ed.) Bronvermelding

Goodman, William. The Two-party System in the United States. Van Nostrand Company Inc, 1956.