TY  - BOOK
AU  - Subramanyam, M.S..
TI  - Bulletins of the geological survey of india:Series A-Economic geology No.22 / 
U1  - Ht4.44`N77 
PY  - 1990///
CY  - Delhi : 
PB  - Civil Lines , 
KW  - Economic Geology
ER  -