Cita APA (7a ed.)

Bertsch, G. K., Clark, R. P., & Wood, D. M. (1991). Comparing political systems: Power and policy in three worlds (4th ed.). Macmillan.

Cita Chicago Style (17a ed.)

Bertsch, Gary K., Robert P. Clark, y David Michael Wood. Comparing Political Systems: Power and Policy in Three Worlds. 4th ed. New York: Macmillan, 1991.

Cita MLA (9a ed.)

Bertsch, Gary K., et al. Comparing Political Systems: Power and Policy in Three Worlds. 4th ed. Macmillan, 1991.