000 00389nam a22001577a 4500
999 _c1068
_d1068
008 200109b ||||| |||| 00| 0 eng d
082 0 0 _a621.84
_bY811
100 _aYoungson, Peter.
_9142
245 1 0 _aSlide valves and valve gearing
_cby Peter Youngson
250 _a1st
260 _aGlasgow
_bMunro
_c1950
300 _a222p.
365 _d13.02
650 0 _aSlide Valves
942 _cBK