Anthracite Mechanical Mining Investigations Progress Report 9
Subtitle: Measurement of Loads Borne by Underground-Roadway Supports.
Contributors: Allan, A.; Kaar, P.; Cooner, J.
Series: Report of investigations (United States. Bureau of Mines) -- 4946
Publisher: s.n
Published: 1953
Place of publication: S.l
Language: eng
Notes: 1