Cita APA

Sherrill, R., & Barber, J. D. (1972). Why they call it politics: A guide to America's government. New York: Harcourt Brace Jovanovich.

Chicago Style Citation

Sherrill, Robert., i James David Barber. Why They Call It Politics: A Guide to America's Government. New York: Harcourt Brace Jovanovich, 1972.

Cita MLA

Sherrill, Robert., i James David Barber. Why They Call It Politics: A Guide to America's Government. New York: Harcourt Brace Jovanovich, 1972.