Library of Congress & Library of Congress. Catalog Maintenance Division. Library of Congress catalog: Books: subjects; a cumulative list of works represented by Library of Congress printed cards. Library of Congress.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLibrary of Congress और Library of Congress. Catalog Maintenance Division. Library of Congress Catalog: Books: Subjects; a Cumulative List of Works Represented by Library of Congress Printed Cards. Washington: Library of Congress.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLibrary of Congress और Library of Congress. Catalog Maintenance Division. Library of Congress Catalog: Books: Subjects; a Cumulative List of Works Represented by Library of Congress Printed Cards. Library of Congress.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.