Analysis of U.S. underground thin seam mining potential
By: prepared by Robert A. Pimental ... [et al.], Ketron, inc. ; prepared for U.S. Department of Energy, Assistant Secretary for Energy Technology, Division of Solid Fuels Mining and Preparation.
Contributors: Pimentel, Robert A.; Ketron, Inc.
Publisher: the Division; for sale by the National Technical Information Service
Published: 1979
Place of publication: [Washington]; Springfield, Va
Language: eng
Subjects: Coal mines and mining.
Notes: "HCP/T-77-C-01-8915-01(5)/v.1-3."

Contract no. HCP/T77-C-01-8915-01(5).