TY  - BOOK
AU  - Johannsen A
AU  -  Naidu P R J Ed.
TI  - Optical mineralogy: a manual of petrographic methods
U1  - H1:C5, K7;2   TH 
PY  - 1967///
CY  - Bombay
PB  - Allied Publishers Private Limited      
KW  -  Mineralogy
KW  -  Optical mineralogy
KW  - Geology
N1  - Index 163-167p
ER  -