Recovery percentage of bituminous coal deposits in the United States (in two parts).

Author: Lowrie, Raymond L.
Year: 1968
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:7109
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 7109
Subject: Bituminous coal--United States
Link: https://hdl.handle.net/2027/mdp.39015078530808

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