The valuation of public coal lands : the value of coal land / by George H. Ashley. Depth and minimum thickness of beds as limiting factors in valuation / by Cassius A. Fisher.

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Main Author: Ashley, Geo. H. (George Hall), 1866-1951
Corporate Author: Geological Survey (U.S.)
Other Authors: Fisher, Cassius A. (Cassius Asa), 1872-1930
Other title:Value of coal land.
Depth and minimum thickness of beds as limiting factors in valuation.
Format: Government Document Book
Language:English
Published: Washington : G.P.O., 1910.
Series:Bulletin (Geological Survey (U.S.)) ; no. 424.
Subjects: