APA (7th ed.) Zitazioa
Janda, K., Berry, J. M., & Goldman, J. (1993). The challenge of democracy: Government in America (3rd ed.). Houghton Mifflin Co..
Chicago Style (17th ed.) Zitazioa
Janda, Kenneth, Jeffrey M. Berry, eta Jerry Goldman. The Challenge of Democracy: Government in America. 3rd ed. Boston: Houghton Mifflin Co., 1993.
MLA (9th ed.) Zitazioa
Janda, Kenneth, et al. The Challenge of Democracy: Government in America. 3rd ed. Houghton Mifflin Co., 1993.
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