A rock drillability index /
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Golden :
Colorado School of Mines,
1969.
|
| Series: | Colorado School of Mines quarterly ;
v. 64, no. 2. |
| Subjects: |
| Physical Description: | iv, 92 pages : illustrations ; 23 cm. |
|---|---|
| Bibliography: | Bibliography: pages 91-92. |