000 00311nam a2200121Ia 4500
008 211209s1969 xx 000 0 und d
041 _aeng
082 _a621.319 N68 BAJ
100 _aBAJPAI M N
245 _aELECTRICAL ESTIMATING AND COSTING M.K.S
260 _aALLAHABAD
_bSAROJ PRAKASHAN
_c1969
300 _a391
999 _c5674
_d5674