Lawrence, Ralph, Restieaux,  1873- <br/><br/>
Principles of alternating currents / 
by Ralph R. Lawrence. 
 - 2nd ed. 
 - New York,  McGraw-Hill,  c1935. 
 - xviii, 475 p. :  ill. ;  21 cm. 
 - Electrical engineering texts .
 - Electrical engineering texts .
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric currents, Alternating.
<br/><br/><label>Dewey Class. No.: </label>621.3133  / LAP 1935