000 00282nam a2200109Ia 45e0
008 181001s1960 xx 000 0 und d
100 _aBeard C.S.
245 0 _aControl valves
260 _aPittsburgh
_bInternational pub. Co.
_c1960
300 _a222
942 _2ddc
_cBK
999 _c1484
_d1484