Abel, G. M. (1955). A study of the costs of storing library materials.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAbel, Gene M. A Study of the Costs of Storing Library Materials. Chicago, 1955.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAbel, Gene M. A Study of the Costs of Storing Library Materials. 1955.
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