Geologic investigations of underground coal mining problems
By: by C. M. McCulloch, P. W. Jeran, and C. D. Sullivan.
Contributors: Jeran, P. W. joint author.; Sullivan, C. D., joint author.; United States. Bureau of Mines
Series: Report of investigations -- 8022
Publisher: Bureau of Mines
Published: 1975
Place of publication: [Washington]
Language: eng
Number of pages: 30
Subjects: Coal mines and mining.
Notes: Bibliography: p. 27.