U.S. Library of Congress. Subject Cataloging Division, Gale Research Inc, Runchock, R., & Droste, K. (1989). Class C. Auxiliary sciences of history: Library of Congress classification schedules combined with additions and changes through 1988. Gale Research Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रU.S. Library of Congress. Subject Cataloging Division, Gale Research Inc, Rita Runchock, और Kathleen Droste. Class C. Auxiliary Sciences of History: Library of Congress Classification Schedules Combined with Additions and Changes Through 1988. Detroit, Michigan: Gale Research Inc, 1989.
एमएलए (9वां संस्करण) प्रशस्ति पत्रU.S. Library of Congress. Subject Cataloging Division, et al. Class C. Auxiliary Sciences of History: Library of Congress Classification Schedules Combined with Additions and Changes Through 1988. Gale Research Inc, 1989.