TY  - BOOK
AU  - Sen,Ajoy Kumar
AU  - Guha, Prasanta Kumar.
TI  - A handbook of economic geology
U1  - 553 
PY  - 1967///
PY  - 1981///
PY  - 1993///
CY  - Calcutta
PB  - Modern Book
KW  - Geology, Economic
ER  -