000
00282nam a2200109Ia 45e0
008
181001s1960 xx 000 0 und d
100
_a
Beard C.S.
245
0
_a
Control valves
260
_a
Pittsburgh
_b
International pub. Co.
_c
1960
300
_a
222
942
_2
ddc
_c
BK
999
_c
1484
_d
1484