TY  - BOOK
AU  - Roy,A.K.
AU  - Ramanamurty,D.V.
ED  - Geological Survey of India (Kolkata)
TI  - Bulletins of the Geological Survey of India
U1  - 555.40061 
PY  - 1975///
CY  - Delhi
PB  - Govt. Press
ER  -