- Additional Authors
- Paul, J. W. (James Washington)
- Description
- 3 p.; cm.
- Series Statement
- Mines Bur. Info. Circ. No. 6040
- Subject
- Coal mines and mining
- Note
- Reuse of record except for individual research requires license from LexisNexis.
- Indexed In (note)
- CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2
- Reproduction (note)
- Call Number
- C22.11-6040
- OCLC
- cis19127200
- Title
Area of unsupported roof in coal mines; conditions and factors for consideration [microform]
- Imprint
Washington, D.C. : [s.n.], 1927.
- Series
Mines Bur. Info. Circ. No. 6040
- Indexed In:
CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2
- Reproduction
Microfiche. [Bethesda, Md.]: LexisNexis Academic & Library Solutions, 1997, 11 x 15 cm. (CIS US Executive Branch Documents : no. C22.11-6040)
- Added Author
Paul, J. W. (James Washington)
- Sudoc No.
C 22.11:6040
- Research Call Number
C22.11-6040