Blalock, Grover Cleveland, <br/><br/>
Direct-current machinery. 

 - 1st ed. 
 - New York,  McGraw-Hill Book Co.,  [c1947] 
 - xi, 367 p.  illus.,  21 cm. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery--Direct current<br/>MCE
<br/><br/><label>Dewey Class. No.: </label>621.3132  / BLA