000 00295nam a2200109Ia 4500
008 200302s9999 xx 000 0 und d
100 _aDr B C Punmia and others
245 _aProject planning and control with pert and Cpm
260 _bLaxmi Publication Pvt. Ltd.
260 _c2017
300 _a250
999 _c6790
_d6790