CUMMINGS, M. C. (1981). Democracy Under Pressure An Introduction To The American Political System Milton C. Cummings; David Wise. Harcourt Brace Jovanovich.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCUMMINGS, Milton C. Democracy Under Pressure An Introduction To The American Political System Milton C. Cummings; David Wise. Harcourt Brace Jovanovich, 1981.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCUMMINGS, Milton C. Democracy Under Pressure An Introduction To The American Political System Milton C. Cummings; David Wise. Harcourt Brace Jovanovich, 1981.
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