TY  - GEN
AU  - JOHNSON, R. A.
AU  - NEWELL, W. T. & VERGIN, R . C.
TI  - Operations Management : A Systems Concept
SN  - 0-395-04695-5
U1  - 658.54 JOH 
PY  - 1972///
CY  - New York
PB  - Houghton Mifflin
ER  -