Cita APA (7th ed.)

Masannat, G. S. (1971). The American political system: Introductory readings. Scribner's.

Cita Chicago (17th ed.)

Masannat, George S. The American Political System: Introductory Readings. New York: Scribner's, 1971.

Cita MLA (9th ed.)

Masannat, George S. The American Political System: Introductory Readings. Scribner's, 1971.