Bertsch, G. K., Clark, R. P., & Wood, D. M. (1986). Comparing political systems: Power and policy in three worlds (Third edition.). Macmillan publishing company.
Chicago-referens (17:e uppl.)Bertsch, Gary K., Robert P. Clark, och David Michael Wood. Comparing Political Systems: Power and Policy in Three Worlds. Third edition. New York: Macmillan publishing company, 1986.
MLA-referens (9:e uppl.)Bertsch, Gary K., et al. Comparing Political Systems: Power and Policy in Three Worlds. Third edition. Macmillan publishing company, 1986.
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