Drill bit.
| New Title: | Southwest oil world |
|---|---|
| Format: | Journal |
| Language: | English |
| Published: |
[Denver, Colo.] :
[Hart Publications]
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| Subjects: | |
| Online Availability: |
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| Published: | v. 1-34 ; 1953-1985. |
|---|---|
| Physical Description: | 34 volumes : illustrations ; 28 cm. |
| ISSN: | 0012-6225 0884-6219 |