- Publication Title:
- Ringelmann smoke chart: by Staff [Office of Director of Coal Research].
- Display Title:
- Information circulars. 8333. Ringelmann smoke chart: by Staff [Office of Director of Coal Research].
- Series Title:
- Information circulars.
- Corporate Agency Authors:
- Mines Bureau and Interior Dept.
- Sort Author:
- Mines Bureau
- Author place:
- Washington, D.C.
- Author zip:
- 20240
- Date:
- [May 1967.]
- Publish Date ISO Format:
- 1967-05-01T00:00:00Z
- Publication Start:
- 19670501
- Publication End:
- 19670531
- Corporate/Agency Author:
- Mines Bureau
- Publication month:
- 8
- Publication year:
- 1967
- SuDoc number:
- I 28.27:(nos.)
- Description:
- [3] +4 p. 1 pl. 4°
- Notes:
- [Revision of Information circular 7718.]
- Notes:
- [Revision of Information circular 7718.] • Sent to Depository Libraries. Item 637-A
- Availability:
- † Distribution Made by Issuing Office. Mines Bureau, Pittsburgh, Pa. 15213 and • Sent to Depository Libraries. Item 637-A
- GPO Item number:
- 637-A
- Monthly Catalog date:
- July 1967
- Monthly Catalog issue number:
- 870
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1967-07-01T00:00:00Z
- Monthly Catalog entry number:
- 11354
- Record start page number:
- 77