Surface and underground coal mine equipment population, 1982

Author: Pojar, Michael G.
Year: 1986
Document Type: USBI
Issuing Agency: U.S. Dept. of the Interior, Bureau of Mines,
SUDOC: I 28.27:9078
Series: Information circular / Bureau of Mines ;
Report Number: 9078
Subject: Coal-mining machinery--United States
Link: https://hdl.handle.net/2027/mdp.39015078459032

< New search