Washington Post Writers Group. (1991). Messages: The Washington Post media companion. Allyn and Bacon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashington Post Writers Group. Messages: The Washington Post Media Companion. Boston: Allyn and Bacon, 1991.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWashington Post Writers Group. Messages: The Washington Post Media Companion. Allyn and Bacon, 1991.
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