- Publication Title:
- Coal. Progress report: Experiments on strength of small pillars of coal in Pittsburgh bed; by H. P. Greenwald, H. C. Howarth, and Irving Hartmann.
- Display Title:
- Coal. Progress report: Experiments on strength of small pillars of coal in Pittsburgh bed; by H. P. Greenwald, H. C. Howarth, and Irving Hartmann.
- Corporate Agency Authors:
- Mines Bureau and Interior Department
- Sort Author:
- Mines Bureau
- Authors:
- Greenwald, H. P., Howarth, H. C., and Hartmann, Irving
- Date:
- June 1941
- Publish Date ISO Format:
- 1941-06-01T00:00:00Z
- Publication Start:
- 19410601
- Publication End:
- 19410630
- Corporate/Agency Author:
- Mines Bureau
- Publication month:
- 7
- Publication year:
- 1941
- SuDoc number:
- I 28.23:3575
- Description:
- [1]+6 p. 3 pl. 4°
- Notes:
- (Report of investigations, R. I. 3575.) [Processed.]
- Notes:
- (Report of investigations, R. I. 3575.) [Processed.] † Distribution Made by Issuing Office.
- Availability:
- † Distribution Made by Issuing Office.
- Monthly Catalog date:
- August 1941
- Monthly Catalog issue number:
- 560
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1941-08-01T00:00:00Z
- Record start page number:
- 1170