Sheehy, E. P. (1976). Guide to reference books (9th ed.). American Library Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSheehy, Eugene Paul. Guide to Reference Books. 9th ed. Chicago: American Library Association, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSheehy, Eugene Paul. Guide to Reference Books. 9th ed. American Library Association, 1976.
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