APA (7th ed.) Citation

Library of congress. (1994). Subject headings: Vol I to IV (17th ed.). Catalogue policy & Support Office.

Chicago Style (17th ed.) Citation

Library of congress. Subject Headings: Vol I to IV. 17th ed. Washington: Catalogue policy & Support Office, 1994.

MLA (8th ed.) Citation

Library of congress. Subject Headings: Vol I to IV. 17th ed. Catalogue policy & Support Office, 1994.