Cheng, David K. (David Keun), 1917- <br/><br/>
Fundamentals of engineering electromagnetics / 
David K. Cheng 
 - Reading, Mass. :  Addison-Wesley,  1993 
 - 488 p. :  ill. ;  25 cm. 
<br/><br/>p. 473-474 
<br/><br/><label>ISBN: </label>0201566117 
<br/><br/><label>LCCN: </label>92-23490 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric engineering<br/>Electromagnetism