000 00239nam a2200085Ia 4500
008 160710s1958 xx 000 0 und d
245 _aENGINEERING NEWS RECORD VOL. 160 JAN-MARCH 1958
260 _aNEW YORK
_bMCGRAW HILL
_c1958
942 _2ddc
_cB
999 _c31065
_d31065