Janda, K., Berry, J. M., & Goldman, J. (2008). The challenge of democracy: Government in America : 2008 update edition (Brief ed., 6th ed.). Houghton Mifflin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJanda, Kenneth, Jeffrey M. Berry, और Jerry Goldman. The Challenge of Democracy: Government in America : 2008 Update Edition. Brief ed., 6th ed. Boston: Houghton Mifflin, 2008.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJanda, Kenneth, et al. The Challenge of Democracy: Government in America : 2008 Update Edition. Brief ed., 6th ed. Houghton Mifflin, 2008.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.