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, 591p. 
<br/><br/><label>Dewey Class. No.: </label>621.3192  / N391;2