000 00258nam a2200109Ia 4500
008 211209s1996 xx 000 0 und d
041 _aeng
082 _aRIG/BED
100 _aRIGGS, JAMES L
245 _aENGINEERING ECONOMICS
260 _aNEW YORK
_bMGH
_c1996
999 _c83434
_d83434