Cita APA (7a ed.)

Lewis, E. (1973). The urban political system. Dryden Press.

Cita Chicago Style (17a ed.)

Lewis, Eugene. The Urban Political System. Hinsdale, Ill.: Dryden Press, 1973.

Cita MLA (9a ed.)

Lewis, Eugene. The Urban Political System. Dryden Press, 1973.