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. - Wellisch, Hans H., 1920; Wilson, Thomas D (Greenwood Publishing Company., 1972)
"Proceedings of an international symposium held at the Center of Adult Education, University of Maryland, College Park, May 14 to 15, 1971."
Meeting sponsored by the University of Maryland School of Library and Information Services
Keywords: Classification -- Books -- Congresses; Information retrieval -- Congresses; Subject cataloging -- Congresses