000 00312nam a2200121Ia 4500
008 170101s1983 xx 000 0 und d
082 _a519 LEV
100 _aLevin, Richard I
245 0 _aPlanning and control with PERT/CPM
260 _aNew Delhi
_bTata McGraw hill
_c1983
300 _aP.179
942 _2ddc
_cBK
999 _c27131
_d27131