TY  - BOOK
AU  - Levy,  Ferdinand K
AU  - Wiest, Jerome D
TI  - Management guide to PERT/CPM: With GERT/PDM/DCPM and other networks
U1  - 65.012.2P 
PY  - 1978///
CY  - New Delhi
PB  - Prentice Hall
ER  -