Care and handling of drill collars [slaid]
18
| Format: | |
|---|---|
| Published: |
Austin, Tex. : Petroleum Extension Service, The University of Texas at Austin,
1977
|
| Subjects: |
18
| Format: | |
|---|---|
| Published: |
Austin, Tex. : Petroleum Extension Service, The University of Texas at Austin,
1977
|
| Subjects: |