Thomson, J. (John), 1905- <br/><br/>
Frequency conversion / 
J. Thomson, W. E. Turk and M. J. Beesley 
 - London :  Wykehem Publication Ltd.,  1969 
 - viii, 206 p. :  ill. ;  22 cm. 
 - Wykeham technological series for universities and institutes of technology ;  4 .
<br/><br/>Bibliography : p. (125-127) 
<br/><br/>Common conversion devices, by J. Thomson.--Light conversion devices, by W. E. Turk.--Masers and lasers, by M. J. Beesley 
<br/><br/><label>ISBN: </label>0851090303 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Photoelectronic devices<br/>Lasers