Parel, A., & Keith, R. C. (1992). Comparative political philosophy: Studies under the upas tree. Sage.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रParel, Anthony, और Ronald C. Keith. Comparative Political Philosophy: Studies Under the Upas Tree. New Delhi ; Newbury Park, Calif.: Sage, 1992.
एमएलए (8वां संस्करण) प्रशस्ति पत्रParel, Anthony, और Ronald C. Keith. Comparative Political Philosophy: Studies Under the Upas Tree. Sage, 1992.
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