Coalfields of India /
Raja Rao, C. S.,1923-
Geological Survey of India.
Calcutta : The Survey,
1981-87.
Maps in pocket, vol. 3 and vol. 4, pt. 1.
Includes bibliographies and index.
v. 1. Coalfields of north eastern India -- v. 2. Coal resources of Tamil Nadu, Andhra Pradesh, Orissa and Maharashtra -- v. 3. Coal resources of Madhya Pradesh, Jammu & Kashmir -- v. 4, pt. 1 Coal resources of Bihar (excluding Dhanbad District).
Coal
Coal mines and mining