TY  - BOOK
AU  - Sharma N L
AU  -  Ram K S V
TI  - Introduction to India's economic minerals
U1  - X9(H1).2.N7, L2 
PY  - 1972///
CY  - Dhanbad
PB  - Dhanbad publications         
KW  - Minerals
N1  - Bib p 399-404
ER  -