Geologic factors causing roof instability and methane emission problems : the Lower Kittaning coalbed, Cambria County, Pa. / by C.M. McCulloch and Maurice Deul.
Electronic resources
Record details
- Physical Description: ii, 25 pages : digital, PDF file
- Publisher: [Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, [1973]
Content descriptions
General Note: | GPO Cataloging Record Distribution Program (CRDP). Title from title screen (viewed on July 18, 2008). |
System Details Note: | Mode of access: Internet at the National Institute for Occupational Safety and Health web site. Address as of 7/18/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/ri7769.pdf; current access available via PURL. |
Search for related items by subject
Subject: | Mine roof control. |
Additional Physical Form Titles
Available in another form: | Geologic factors causing roof instability and methane emission problems |