TY - BOOK AU - Schorr John E. TI - Purchasing in the 21st century : a guide to state-of-the-art techniques and strategies SN - 0939246228 AV - HF 5437 S36P 1992 PY - 1992/// CY - Chicago, Ill. PB - Oliver Wight KW - PURCHASING N1 - Includes index ER -