Hartshorne, N. H. (Norman Holt) <br/><br/>
Practical optical crystallography / 
by N.H. Hartshorne and A. Stuart 
 - New York /  American Elsevier Pub. Co,  1964 
 - vii, 326 p. :  ill. ;  23  cm. 
<br/><br/>p. 314-317. 
<br/><br/><label>LCCN: </label>64-022307 //r83 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Crystal optics