Farago, Peter Stephen. <br/><br/>
Free-electron physics / 
P. S. Farago. 
 - Harmondsworth :  Penguin,  1970. 
 - 269 p. :  ill. ;  21 cm.  
 - Penguin library of physical sciences. .
<br/><br/><label>ISBN: </label>0140800999 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronics
<br/><br/><label>Dewey Class. No.: </label>537.5