Coal and lignite resources of India: An overview
Acharyya, S K
Coal and lignite resources of India: An overview - Bangalore: Geological Society of India, 2000 - 50p.
Resources
Geological survey
553.94(540) / P0
Coal and lignite resources of India: An overview - Bangalore: Geological Society of India, 2000 - 50p.
Resources
Geological survey
553.94(540) / P0