Cita APA (7th ed.)

Nichols, R. F. (1967). The disruption of American democracy. Free Press.

Cita Chicago (17th ed.)

Nichols, Roy Franklin. The Disruption of American Democracy. N.Y.: Free Press, 1967.

Cita MLA (8th ed.)

Nichols, Roy Franklin. The Disruption of American Democracy. Free Press, 1967.