University, U. c. S. L. (1970). Textbooks for sale at the Parks College bookstore, February 5, 1970.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUniversity, Unknown creator; St. Louis. Textbooks for Sale at the Parks College Bookstore, February 5, 1970. 1970.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUniversity, Unknown creator; St. Louis. Textbooks for Sale at the Parks College Bookstore, February 5, 1970. 1970.
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