Proceedings of symposium on drilling technology and engineering aids to geological exploration, Calcutta 12th to 15th February 1980.
Symposium on Drilling Technology and Engineering Aids to Geological Exploration(1980 :Calcutta, India)
Geological Survey of India.
Calcutta Geological Survey of India,
1980.
Includes bibiliographical references.
Drilling and boring machinery
Boring
Geology
Prospecting