TY  - BOOK
AU  - Chang,Yih-Long.
TI  - QSOM.Quantitative Systems for Operations Management: Version 2.0
SN  - 0137471637
SN  - 013747163
AV  - 658.500285 
U1  - 658.500285 
PY  - 1991///
CY  - New Jersey.
PB  - Prentice Hall.
N1  - Paper Cover
ER  -