- Additional Authors
- United States. Bureau of Mines.
- Description
- ii, 149 p. : ill.; 28 cm.
- Series Statement
- Information circular ; 9231
- Uniform Title
- Information circular (United States. Bureau of Mines) ; 9231.
- Subjects
- Note
- Distributed to depository libraries in microfiche.
- Bibliography (note)
- Includes bibliographical references (p. 28).
- Call Number
- READEX Microfiche I 28.27:9231
- LCCN
- 89600167
- OCLC
- marcive19846630
- Author
Barczak, Thomas M.
- Title
Advanced guidelines for performance testing of two-legged longwall shields / by Thomas M. Barczak.
- Imprint
Washington, D.C. (2401 E Street, N.W., MS #9800, Washington 20401) : U.S. Dept. of the Interior, Bureau of Mines, [1989]
- Series
Information circular ; 9231
Information circular (United States. Bureau of Mines) ; 9231.
- Bibliography
Includes bibliographical references (p. 28).
- Added Author
United States. Bureau of Mines.
- Gpo Item No.
637-A (MF)
- Sudoc No.
I 28.27:9231
- Research Call Number
READEX Microfiche I 28.27:9231