Clayton, Albert E. <br/><br/>
The performance and design of direct current machines / 
Albert E. Clayton, N. N. Hancock. 
 - 3rd ed. 
 - Delhi, India :  CBS Publishers and Distributors,  c[1990]. 
 - xx, 515 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--Direct current.