000 00249nam a2200109Ia 4500
008 160710s1993 xx 000 0 und d
100 _aBETTY,J.G
245 _aENGINEERING CONTRACTS
260 _bMCGRAW HILL
_c1993
300 _a285
942 _2ddc
_cD
999 _c70414
_d70414