Selected geologic factors affecting mining of the Pittsburgh coalbed
By: by C. M. McCulloch ... [et al.].
Contributors: McCulloch, C. M.; United States. Bureau of Mines
Series: Report of investigations - Bureau of Mines -- 8093
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1975
Place of publication: Pittsburgh
Language: eng
Number of pages: 72
Subjects: Coal mines and mining -- Pennsylvania.; Coal mines and mining -- West Virginia.; Methane.
Notes: Tables.

Bibliography: p. 54-62.