Proceedings of symposium on drilling technology and engineering aids to geoogical exploration calcutta 12th to 15th february 1980

Special publication

Proceedings of symposium on drilling technology and engineering aids to geoogical exploration calcutta 12th to 15th february 1980 Special publication No.4 - Newdelhi Geological Survey of India 1980

University Library
Cochin University of Science and Technology
Kochi-682 022, Kerala, India