Red. Newspaper Enterprise Association, I. (1978). The World Almanac and Book of Facts 1979. Newspaper Enterprise Association, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRed. Newspaper Enterprise Association, Inc. The World Almanac and Book of Facts 1979. Newspaper Enterprise Association, Inc, 1978.
एमएलए (8वां संस्करण) प्रशस्ति पत्रRed. Newspaper Enterprise Association, Inc. The World Almanac and Book of Facts 1979. Newspaper Enterprise Association, Inc, 1978.
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