TY  - BOOK
AU  - Levin,Richard  .
TI  - Planning and control with PERT/CPM / 
U1  - 658.40320223 
PY  - 1966///
CY  - New Delhi : 
PB  - Tata McGraw-Hill Publishing , 
KW  - PERT
N1  - Include index
ER  -