APA (7th ed.) Citation

Greenberg. (1980). The American political system: A radical approach. Winthrop Publishers.

Chicago Style (17th ed.) Citation

Greenberg. The American Political System: A Radical Approach. Cambridge, Massachusetts: Winthrop Publishers, 1980.

MLA (8th ed.) Citation

Greenberg. The American Political System: A Radical Approach. Winthrop Publishers, 1980.

Warning: These citations may not always be 100% accurate.