00297nam a2200109 a 4500008004100000050001600041100001800057245004600075260003500121300002200156350000900178080109s1988    ||||||||||||||||| ||    u  aTK 2781 Fin  aFinney, David10aVariable frequency AC motor drive systems  aLondonbPeter Peregrinusc1988  axii, 391p. : ill.  a0.00