000 00315nam a2200121Ia 4500
008 220201s1950 xx 000 0 eng d
082 _a621.64
_bWIL
100 _aWilson, Warren E
245 0 _aPositive displacement pumps & fluid motors
260 _bLondon: Pitman Pub Corp.
_c1950
300 _a250
942 _2ddc
999 _c78259
_d78259