000 00256nam a2200109Ia 4500
100 _aB.P SINHA
365 _cRS
365 _d1
942 _cENGBK
245 _aMechanical Estimation and Costing
260 _bTata-mcgraw-hill publications co
_c1995
_aNEW DELHI
999 _c10513
_d10513