The history and future of longwall mining in the United States
By: by Thomas M. Barczak.
Series: Information circular ;; 9316; Information circular (United States. Bureau of Mines) ;; 9316.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1992
Place of publication: Washington, D.C
Language: eng
Number of pages: 26
Subjects: Longwall mining -- United States -- History.; Longwall mining -- United States.
Notes: Includes bibliographical references (p. 25-26).