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- Corporate/Agency Authors:
- Mines Bureau and Interior Department
- Publisher:
- Mines Bureau
- Date:
- [Revised edition.] [Apr.] 1920
- Corporate/Agency Authors:
- Mines Bureau and Interior Department
- Publisher:
- Mines Bureau
- Date:
- [1st edition.] [Apr.] 1920
- Corporate/Agency Authors:
- Education Bureau and Interior Department
- Publisher:
- Education Bureau
- Date:
- Apr. 1920
- Corporate/Agency Authors:
- Geological Survey and Interior Department
- Publisher:
- Geological Survey
- Date:
- Mar. 31, 1920
- Corporate/Agency Authors:
- Geological Survey and Interior Department
- Publisher:
- Geological Survey
- Date:
- Mar. 31, 1920
- Corporate/Agency Authors:
- Geological Survey and Interior Department
- Publisher:
- Geological Survey
- Date:
- Mar. 31, 1920
- Corporate/Agency Authors:
- Geological Survey and Interior Department
- Publisher:
- Geological Survey
- Date:
- Mar. 30, 1920
- Corporate/Agency Authors:
- Geological Survey and Interior Department
- Publisher:
- Geological Survey
- Date:
- Mar. 29, 1920
- Corporate/Agency Authors:
- Interior Department
- Publisher:
- Interior Department
- Date:
- Mar. 26, 1920
- Corporate/Agency Authors:
- Interior Department
- Publisher:
- Interior Department
- Date:
- Mar. 26, 1920