000 00324nam a2200121Ia 4500
008 220201s1977 xx 000 0 eng d
082 _a658.4032
_bLEV
100 _aLEVIN (Reference ichard I)
245 0 _aPlanning and Control with pert/cpm.
260 _bTata mc graw-hill pub co.ltd .
_c1977
300 _a179
942 _2ddc
999 _c3609
_d3609