- Publication Title:
- Costs of mining under bolted roof and timbered roof in bituminous coal mines; by M. J. Ackerman and J. J. Wallace.
- Display Title:
- Information circulars. 8024. Costs of mining under bolted roof and timbered roof in bituminous coal mines; by M. J. Ackerman and J. J. Wallace.
- Series Title:
- Information circulars.
- Corporate Agency Authors:
- Mines Bureau and Interior Dept.
- Sort Author:
- Mines Bureau
- Authors:
- Ackerman, M. J. and Wallace, J. J.
- Date:
- [1961.]
- Publish Date ISO Format:
- 1961-01-01T00:00:00Z
- Publication Start:
- 19610101
- Publication End:
- 19611231
- Corporate/Agency Author:
- Mines Bureau
- Publication month:
- 13
- Publication year:
- 1961
- SuDoc number:
- I 28.27:(nos.)
- Description:
- [3]+21 p. 4°
- Notes:
- † Distribution Made by Issuing Office. • Sent to Depository Libraries. Item 637-A
- Availability:
- † Distribution Made by Issuing Office. • Sent to Depository Libraries. Item 637-A
- GPO Item number:
- 637-A
- Monthly Catalog date:
- August 1961
- Monthly Catalog issue number:
- 799
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1961-08-01T00:00:00Z
- Monthly Catalog entry number:
- 13436
- Record start page number:
- 89