APA (7th ed.) Citation

Wellisch, H., & Wilson, T. D. (1972). Subject retrieval in the seventies: New directions : Proceedings of an international symposium held at the Center of Adult Education University of Maryland College Park, may 14 to 15,1971. Greenwood : School of Library and Information Services, University of Maryland.

Chicago Style (17th ed.) Citation

Wellisch, Hans, and Thomas D. Wilson. Subject Retrieval in the Seventies: New Directions : Proceedings of an International Symposium Held at the Center of Adult Education University of Maryland College Park, May 14 to 15,1971. Westport: Greenwood : School of Library and Information Services, University of Maryland, 1972.

MLA (9th ed.) Citation

Wellisch, Hans, and Thomas D. Wilson. Subject Retrieval in the Seventies: New Directions : Proceedings of an International Symposium Held at the Center of Adult Education University of Maryland College Park, May 14 to 15,1971. Greenwood : School of Library and Information Services, University of Maryland, 1972.