TY  - BOOK
AU  - Vinchel, Alexendar N
TI  - Prakasheey khanij-vigyan ke mool tatva (प्रकाशीय खनिज-विज्ञानं के मूल तत्त्व)
U1  - 549.12  
PY  - 1980///
CY  - Bhopal
PB  - Madhya Pradesh Hindi granth academy
ER  -