Leiserson, A., Garceau, O., & Key, V. O. (1968). Political research and political theory. Harvard University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeiserson, Avery, Oliver Garceau, और Valdimar Orlando Key. Political Research and Political Theory. Cambridge: Harvard University Press, 1968.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLeiserson, Avery, et al. Political Research and Political Theory. Harvard University Press, 1968.
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