Mineral Resources of Johnstown, Pennsylvania and Vicinity
| Author | : William Clifton Phalen |
| Publisher | : |
| Total Pages | : 594 |
| Release | : 1911 |
| Genre | : Coal mines and mining |
| ISBN | : |
Mineral Resources Of Johnstown Pennsylvania And Vicinity
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Technical Development Report
| Author | : United States. Civil Aeronautics Administration |
| Publisher | : |
| Total Pages | : 224 |
| Release | : 1946 |
| Genre | : Aeronautics |
| ISBN | : |
The Origin, Distribution, and Airphoto Identification of United States Soils
| Author | : D. S. Jenkins |
| Publisher | : |
| Total Pages | : 226 |
| Release | : 1946 |
| Genre | : Soil mechanics |
| ISBN | : |
The Origin, Distribution, and Airphoto Identification of the United States Soils
| Author | : United States. Civil Aeronautics Administration |
| Publisher | : |
| Total Pages | : 218 |
| Release | : 1946 |
| Genre | : Aerial photography in soil surveys |
| ISBN | : |
Airphotos Illustrating the Origin, Distribution, and Airphoto Identification of United States Soils
| Author | : |
| Publisher | : |
| Total Pages | : 228 |
| Release | : 1946 |
| Genre | : Aerial photography in soil surveys |
| ISBN | : |
A List of the Publications of the United States Geological Survey, Not Including Topographical Maps
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 478 |
| Release | : 1879 |
| Genre | : Geology |
| ISBN | : |
Bulletin of the United States Geological Survey
| Author | : Geological Survey (U.S.) |
| Publisher | : |
| Total Pages | : 168 |
| Release | : 1911 |
| Genre | : Geology |
| ISBN | : |
