000 00293nam a2200121Ia 4500
008 220201s1982 xx 000 0 eng d
082 _a624.1042
_bBIR
100 _aBirdie,GS
245 0 _aText book of estimating & costing
260 _bDhanpat rai&sons
_c1982
300 _a937
942 _2ddc
999 _c83242
_d83242