Washburne, C. W., & Vogel, M. (1926). Winnetka graded book list. American Library Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWashburne, Carleton Wolsey, और Mabel Vogel. Winnetka Graded Book List. Chicago: American Library Association, 1926.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWashburne, Carleton Wolsey, और Mabel Vogel. Winnetka Graded Book List. American Library Association, 1926.
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