Carrington, R. (1963). A million years of man: The story of human development as a part of nature. World Pub.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCarrington, Richrd. A Million Years of Man: The Story of Human Development as a Part of Nature. Cleveland: World Pub, 1963.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCarrington, Richrd. A Million Years of Man: The Story of Human Development as a Part of Nature. World Pub, 1963.
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