TY - BOOK AU - Ammer,Dean S. TI - Materials management and purchasing SN - 0256021465 AV - TS161 .A42 1980 U1 - 658.72 PY - 1980/// CY - Homewood, Ill. PB - R. D. Irwin KW - Materials management KW - Industrial procurement N1 - Includes index ER -