Thomson, J. <br/><br/>
Frequency conversion 
[by] J. Thomson, W. E. Turk [and] M. J. Beesley. 
 - London,  Wykeham Publications,  1969. 
 - viii, 206 p.  illus.  22 cm. 
 - The Wykeham technological series .
<br/><br/><label>ISBN: </label>0851090303 
<br/><br/><label>Subjects--Index Terms: </label>Optoelectronic devices  Lasers 
<br/><br/><label>Dewey Class. No.: </label>621.381/5363  / THO