TY - BOOK TI - National Library of Medicine classification : a scheme for the shelf arrangement of library materials in the field of medicine and its related sciences SN - 0160453976 (acidfree paper) U1 - 025.4961 PY - 1994/// CY - Bethesda PB - U.S. Department of Health and Human Services, Public Health Service, National Institutes of Health, National Library of Medicine KW - Classification N1 - Includes index ER -