- Publication Title:
- Coal. Experiments on strength of small pillars of coal in Pittsburgh bed; by H. P. Greenwald, H. C. Howarth, and Irving Hartmann.
- Display Title:
- Coal. 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:
- 1939
- Publish Date ISO Format:
- 1939-01-01T00:00:00Z
- Publication Start:
- 19390101
- Publication End:
- 19391231
- Corporate/Agency Author:
- Mines Bureau
- Publication month:
- 13
- Publication year:
- 1939
- SuDoc number:
- I 28.7:605
- Description:
- iii+22+[1] p. il.
- Notes:
- (Technical paper 605.)
- Notes:
- (Technical paper 605.) * For Sale by Superintendent of Documents. Paper, 5c.
- Availability:
- * For Sale by Superintendent of Documents. Paper, 5c.
- Monthly Catalog date:
- January 1940
- Monthly Catalog issue number:
- 541
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1940-01-01T00:00:00Z
- LC Number:
- L. C. card 40-26115
- Record start page number:
- 59