Vinchel, Alexendar N <br/><br/>
Prakasheey khanij-vigyan ke mool tatva (प्रकाशीय खनिज-विज्ञानं के मूल तत्त्व) 

 - Bhopal  Madhya Pradesh Hindi granth academy  1980 
 - 255 p.  
<br/><br/><label>Dewey Class. No.: </label>549.12   / VI PRA