TY  - BOOK
AU  - Alexander N. Winchell
TI  - Elements of optical mineralogy : An introduction to microscopic petrography. Part 1 Principles and methods Ed 5 
U1  - 549 
PY  - 1968///
CY  - New Delhi
PB  - Wiley Eastern Pvt Limited
N1  - Alexander N. Winchell: Elements of optical mineralogy : An introduction to microscopic petrography. Part 1 Principles and methods Ed 5.  (5th Edition.)  New Delhi.  Wiley Eastern Pvt Limited, 1968.--(549WIN)
ER  -