Cita APA (7th ed.)

Berman, L., & Murphy, B. A. (2005). Approaching democracy (Portfolio edition.). Prentice Hall.

Cita Chicago (17th ed.)

Berman, Larry, i Bruce Allen Murphy. Approaching Democracy. Portfolio edition. Upper Saddle River, NJ: Prentice Hall, 2005.

Cita MLA (9th ed.)

Berman, Larry, i Bruce Allen Murphy. Approaching Democracy. Portfolio edition. Prentice Hall, 2005.