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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
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| Formato: | Printed Book |
| Lenguaje: | English |
| Publicado: |
Newdelhi
Geological Survey of India
1980
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SOS
| Copia | Estatus de actividad no disponible |
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