Allen, Leslie. <br/><br/>
Principles of gas lasers / 
L. Allen and D. G. C. Jones. 
 - London:  Butterworths,  1967. 
 - ix, 158 p. :  plates, diagrs.;  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Lasers.
<br/><br/><label>Dewey Class. No.: </label>621.381 ALL