000			00269nam a2200097Ia 4500
008			160710s1971 xx 000 0 und d
100			_aENGINEERING NEWS RECORD
245			_aENGINEERING NEWS RECORD,SEP.-OCT.
260			_bMC GRAW HILL PUBLICATIONS _c1971
942			_2ddc _cB
999			_c40563 _d40563