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Cleat in bituminous coalbeds

Main Author: McCulloch, C. M.
Other Authors: Deul, Maurice., Jeran, P. W., United States. Bureau of Mines.
Format: Electronic
Language: English
Published: [Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1974]
Physical Description: 25 pages : digital, PDF file.
Series: Report of investigations (United States. Bureau of Mines) ; 7910.
Subjects:
Online Access: http://purl.access.gpo.gov/GPO/LPS97755