Heumann, Gerhart W. <br/><br/>
Magnetic control of industrial motors 
by Gerhart W.Heumann 
 - New York  Wiley  c1961 
 - 3v,334p.  ill.;  24cm 
<br/><br/><label>ISBN: </label>0061011593 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric controllers<br/>Electric motors.