Rockbolt anchorage in tertiary-gravel material
By: John P. Conway.
Series: Report of investigations (United States. Bureau of Mines) -- 7578.
Publisher: United States Department of the Interior, Bureau of Mines
Published: 1971
Place of publication: Badger Hill, CA
Language: eng
Number of pages: 14
Subjects: Mine roof bolting.
Notes: Bibliogr.

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