Studies of Roof Movement in Coal Mines. 4. Study of Subsidence of A Highway Caused by Mining Coal Beneath.
Contributors: Maize, E.R.; Thomas, E.; Greenwald, H.P.
Series: Report of investigations (United States. Bureau of Mines) -- 3562
Publisher: s.n
Published: 1941
Place of publication: S.l
Language: eng
Notes: 1