Cita APA

Greenberg, E. S. 1., & Greenberg, E. S. 1. (1977). The American political system: A radical approach. Cambridge, Massachusetts: Winthrop Publishers, Inc..

Citación estilo Chicago

Greenberg, Edward S. 1942-, y Edward S. 1942- Greenberg. The American Political System: A Radical Approach. Cambridge, Massachusetts: Winthrop Publishers, Inc., 1977.

Cita MLA

Greenberg, Edward S. 1942-, y Edward S. 1942- Greenberg. The American Political System: A Radical Approach. Cambridge, Massachusetts: Winthrop Publishers, Inc., 1977.