Townsend, P. D. (Peter David) <br/><br/>
Colour centres and imperfections in insulators and semiconductors / 
/ P. D. Townsend and J. C. Kelly 
 - London :  Chatto & Windus,  1973 
 - x, 229 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0856210226 
<br/><br/><label>LCCN: </label>73-076960 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Color centers<br/>Electric insulators and insulation--Defects<br/>Semiconductors--Defects