Gay, P.  1905- <br/><br/>
An introduction to crystal optics / 
by P. Gay 
 - London :  Longmans,  1967 
 - x, 262 p. :  ill. ;  22 cm. 
<br/><br/> Col. diagr. as insert  Includes index 
<br/><br/>Bibliography: p. 254-257 
<br/><br/><label>ISBN: </label> £ 2.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crystal optics
<br/><br/><label>Dewey Class. No.: </label>548.9