- Additional Authors
- Ash, S. H. (Simon Harry), 1889-
- Description
- 8 p.; cm.
- Series Statement
- Mines Bur. Info. Circ. No. 6316
- Subject
- Mine timbering > Law and legislation
- Note
- Reuse of record except for individual research requires license from LexisNexis.
- [On methods for preventing roof collapse in Washington State mines, with data on deaths]
- Indexed In (note)
- CIS Index to U.S. Executive Branch Documents, 1910-1932 Part 2
- Reproduction (note)
- Call Number
- C22.11-6316
- OCLC
- cis19127432
- Title
Systematic timbering rules at Washington coal mines [microform]
- Imprint
Washington, D.C. : [s.n.], 1930.
- Series
Mines Bur. Info. Circ. No. 6316
- 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. C22.11-6316)
- Added Author
Ash, S. H. (Simon Harry), 1889-
- Sudoc No.
C 22.11:6316
- Research Call Number
C22.11-6316