Proceedings of the International Conference on Deep Hole and boring /
20
Main Authors: | , , |
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Format: | |
Published: |
Uxbridge, Middl.: Brunei University,
1977
|
Subjects: |
20
Main Authors: | , , |
---|---|
Format: | |
Published: |
Uxbridge, Middl.: Brunei University,
1977
|
Subjects: |