Design practices for multiple-seam longwall mines
By: by Gregory J. Chekan and Jeffrey M. Listak.
Contributors: Listak, Jeffrey M.
Series: Information circular ;; 9360; Information circular (United States. Bureau of Mines) ;; 9360.
Publisher: U.S. Dept. of the Interior, Bureau of Mines
Published: 1993
Place of publication: Washington, D.C
Language: eng
Number of pages: 35
Subjects: Ground control (Mining); Longwall mining.
Notes: Includes bibliographical references (p. 34-35).