Clay veins : their occurrence, characteristics, and support /
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| Corporate Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
[Pittsburgh, Pa.] :
U.S. Dept. of the Interior, Bureau of Mines,
[1987]
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| Series: | Report of investigations (United States. Bureau of Mines) ;
9060. |
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| Online Access: | https://purl.fdlp.gov/GPO/LPS97760 |
| Item Description: | Title from title screen (viewed on July 22, 2008). Electronic resource. |
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| Physical Description: | 19 pages : digital, PDF file. |
| Format: | Mode of access: Internet at the National Institute for Occupational Safety and Health web site. Address as of 7/22/08: http://www.cdc.gov/niosh/mining/pubs/pdfs/ri9060.pdf ; current access available via PURL. |