Library of Congress & Library of Congress. Cataloging Policy and Support Office. (2007). Library of Congress classification. T. Technology (2007 ed.). Cataloging Distribution Service, Library of Congress.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLibrary of Congress और Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. T. Technology. 2007 ed. Washington, D.C: Cataloging Distribution Service, Library of Congress, 2007.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLibrary of Congress और Library of Congress. Cataloging Policy and Support Office. Library of Congress Classification. T. Technology. 2007 ed. Cataloging Distribution Service, Library of Congress, 2007.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.