Case, John. <br/><br/>
Theory of direct current dynamos and motors / 

 - Cambridge :  Heffer and Sons,  1921. 
 - xiii, 529 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electromagnetism<br/>Armature winding<br/>Generator theory
<br/><br/><label>Dewey Class. No.: </label>621.313  / CAS