000			003720000a22001570004500
245			_aValve selection handbook
100			_aZappe, R.W.
250			_a3rd ed.
260			_aHouston _bGulf _c1991
300			_axiv, 345p. : ill.
020			_a0872018636
080			_a621.646(02) _bZ3
650			_aVALVES AND VALVE GEAR-HANDBOOKS
041			_aEN
942			_cBK _01
999			_c70041 _d70041