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Proceedings of symposium on drilling technology and engineering aids to geoogical exploration calcutta 12th to 15th february 1980 Special publication No.4
| मुख्य लेखक: | |
|---|---|
| स्वरूप: | Printed Book |
| भाषा: | English |
| प्रकाशित: |
Newdelhi
Geological Survey of India
1980
|
| विवरण उपलब्ध नहीं है |