000 00348nam a2200121Ia 4500
100 _aRyff, Peter; Platnick, David & Karnas, Joseph
020 _a0-13-247222-8
942 _cBK
245 _aElectrical mechanies and transformers
_bPrinciples and applications
260 _aPrentice-Hall, America
_c1982
082 _a621.31042 F.R
300 _axvi,448
999 _c65636
_d65636