000 00288nam a2200109Ia 4500
008 220201s1993 xx 000 0 eng d
100 _aKHANNA O P
245 0 _aTEXT BOOK OF MECHANICAL ESTIMATING AND COSTING
260 _aDELHI
_bDHANPAT RAI AND SONS
_c1993
300 _a336
942 _2ddc
999 _c91441
_d91441