Cita APA (7th ed.)

Masannat, G. S., & Martin, V. (1971). The american political system: Introductory readings. Charles Scribner's Sons.

Cita Chicago (17th ed.)

Masannat, George S., i Vernon Martin. The American Political System: Introductory Readings. Nueva York: Charles Scribner's Sons, 1971.

Cita MLA (9th ed.)

Masannat, George S., i Vernon Martin. The American Political System: Introductory Readings. Charles Scribner's Sons, 1971.