Say, M. G. <br/><br/>
Direct current machines / 
M. G. Say, E. Openshaw Taylor. 
 - 2nd ed. 
 - London :  Pitman,  1980. 
 - x, 396 p. :  ill. ;  23 cm. 
<br/><br/>
<br/><br/><label>ISBN: </label>0470268387 0273024574 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--Direct current.
<br/><br/><label>LC Class. No.: </label>TK 2611  / .S29 
<br/><br/><label>Dewey Class. No.: </label>621.313/2