| Author | : Harold Eugene Culver |
| Publisher | : |
| Total Pages | : 155 |
| Release | : 1919 |
| Genre | : Coal mines and mining |
| ISBN | : |
The Coal Fields of Southwestern Washington
| Author | : Harold Eugene Culver |
| Publisher | : |
| Total Pages | : 306 |
| Release | : 1918 |
| Genre | : Coal mines and mining |
| ISBN | : |
The Coal Fields of Southwestern Washington
| Author | : Harold Eugene Culver |
| Publisher | : |
| Total Pages | : 556 |
| Release | : 1919 |
| Genre | : Coal mines and mining |
| ISBN | : |
Technical Paper
| Author | : United States. Bureau of Mines |
| Publisher | : |
| Total Pages | : 956 |
| Release | : 1930 |
| Genre | : Mines and mineral resources |
| ISBN | : |
