Nagle, J. D. (1985). Introduction to comparative politics: Political system performance in three worlds. Nelson - Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNagle, John D. Introduction to Comparative Politics: Political System Performance in Three Worlds. Chicago: Nelson - Hall, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNagle, John D. Introduction to Comparative Politics: Political System Performance in Three Worlds. Nelson - Hall, 1985.
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