Cita APA (7th ed.)

BACKER, A. (1973). The study of politics: The Western tradition. McGraw-Hill.

Cita Chicago (17th ed.)

BACKER, Andrew. The Study of Politics: The Western Tradition. New York: McGraw-Hill, 1973.

Cita MLA (9th ed.)

BACKER, Andrew. The Study of Politics: The Western Tradition. McGraw-Hill, 1973.