Darkening light-color soils with coal-mine waste

Author: Broderick, S. J.
Year: 1940
Document Type: BMRA
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.23:3516
Series: Report of investigations / United States Department of the Interior, Bureau of Mines ;
Report Number: 3516
Subject: Coal mine waste--United States
Link: https://hdl.handle.net/2027/mdp.39015078491951

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