Moebs, Noel N.
Geotechnology in slate quarry operations / by Noel N. Moebs, Gary P. Sames, and Thomas E. Marshall. - [Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, [1985] - ii, 38 p. : ill. ; 28 cm. - Bureau of Mines report of investigations ; 9009 . - Report of investigations (United States. Bureau of Mines) ; 9009. .
Bibliography: p. 35-37.
85600255
Ground control (Mining)--Pennsylvania--Pen Argyl Region.
Slate--Pennsylvania--Pen Argyl Region.
Quarries and quarrying--Pennsylvania--Pen Argyl Region.
TN23 TN288 / .U43 no. 9009
622 s 622/.354
Geotechnology in slate quarry operations / by Noel N. Moebs, Gary P. Sames, and Thomas E. Marshall. - [Pittsburgh, Pa.] : U.S. Dept. of the Interior, Bureau of Mines, [1985] - ii, 38 p. : ill. ; 28 cm. - Bureau of Mines report of investigations ; 9009 . - Report of investigations (United States. Bureau of Mines) ; 9009. .
Bibliography: p. 35-37.
85600255
Ground control (Mining)--Pennsylvania--Pen Argyl Region.
Slate--Pennsylvania--Pen Argyl Region.
Quarries and quarrying--Pennsylvania--Pen Argyl Region.
TN23 TN288 / .U43 no. 9009
622 s 622/.354