Langsdorf, Alexander S. <br/><br/>
Principles of direct-current machines  
/ Alexander S. Langsdorf. 
 - 6a ed. 
 - New York, NY. :  McGraw-Hill,  1959 
 - xvii, 363 p. :  il. ;  23 cm. 
<br/><br/>Incluye índice 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Maquinaria electrica --Corriente directa
<br/><br/><label>LC Class. No.: </label>TK2612  / L36 1959