Mitchell, H. B. (2001). Readings from the Roots of wisdom (3rd ed.). Wadsworth Thomson Learning.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMitchell, Helen Buss. Readings from the Roots of Wisdom. 3rd ed. Australia: Wadsworth Thomson Learning, 2001.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMitchell, Helen Buss. Readings from the Roots of Wisdom. 3rd ed. Wadsworth Thomson Learning, 2001.
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