Dover, A. T. <br/><br/>
Theory and practice of alternating currents :  general principles, circuits instruments, measurements transformers, machines symmetrical components / 
by A.T. Dover. 
 - 3rd ed. 
 - London :  Isaac Pitman,  1939. 
 - xvi, 591 p. ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric currents, Alternating.