Fairbanks, J. D., Saffell, D. C., & Perrenod, V. L. (1981). Student guide for David C. Saffell's The politics of American national government (Fourth edition.). Winthrop.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFairbanks, James David, David C. Saffell, और Virginia Lacy Perrenod. Student Guide for David C. Saffell's The Politics of American National Government. Fourth edition. Cambridge, Mass: Winthrop, 1981.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFairbanks, James David, et al. Student Guide for David C. Saffell's The Politics of American National Government. Fourth edition. Winthrop, 1981.
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