Cita APA (7th ed.)

Clem, A. L. (1989). Congress: Powers, processes and politics. Brooks/Cole.

Cita Chicago (17th ed.)

Clem, Alan L. Congress: Powers, Processes and Politics. Pacific Grove, Calif: Brooks/Cole, 1989.

Cita MLA (9th ed.)

Clem, Alan L. Congress: Powers, Processes and Politics. Brooks/Cole, 1989.