Bertolotti, Mario. <br/><br/>
Masers and lasers :  an historical approach / 
M. Bertolotti. 
 - Bristol :  A. Hilger,  c1983. 
 - xii, 268 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0852745362 (hbk.)  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Masers--History.<br/>Lasers--History.