Schulman. Recapturing the Oval Office. Cornell University Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchulman. Recapturing the Oval Office. Cornell University Press.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSchulman. Recapturing the Oval Office. Cornell University Press.
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