A Catalogue Entry Retrieval System Scheff, B. H. CACM July, 1963 CA630726 JB March 14, 1978 8:08 AM 1050 4 798 1102 4 798 378 4 798 3008 4 798 731 4 798 798 4 798 209 5 798 798 5 798 798 5 798 798 5 798