Blalock, Grover C.  1884- <br/><br/>
Direct-current machinery / 
Grover C. Blalock. 
 - 1st ed. 
 - New York :  McGraw-Hill Book Co.,  c1947. 
 - xi,367p. :  ill. ;  21 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>LCCN: </label>47006367  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--Direct current
<br/><br/><label>LC Class. No.: </label>TK2612  / .B45 
<br/><br/><label>Dewey Class. No.: </label>621.3152/BLD