Lawrence, Ralph R. <br/><br/>
Principles of alternating-current mechinery / 
Ralph R. Lawrence. 
 - 3rd ed. 
 - New York :  Mcgraw-Hill Book Company, Inc,  c1940. 
 - xix, 678 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><br/>English. 
<br/><br/><label>LCCN: </label>80019632  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric machinery.
<br/><br/><label>LC Class. No.: </label>TK2182  / .M32 
<br/><br/><label>Dewey Class. No.: </label>621.31042/LAP