Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed) /
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Pittsburgh, Pa.] :
U.S. Dept. of the Interior, Bureau of Mines,
[1972]
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| Series: | Report of investigations (United States. Bureau of Mines) ;
7657. |
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| Online Access: | https://purl.fdlp.gov/GPO/LPS97460 |
| Item Description: | Title from title screen (viewed on July 18, 2008). Electronic resource. |
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| Physical Description: | 9 pages : digital, PDF file. |
| Format: | 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/ri7657.pdf ; current access available via PURL. |