cost comparison of selected U.S. and Venezuelan coal mines
By: prepared by U.S. Department of Interior, U.S. Bureau of Mines, Division of Resource Evaluation.
Publisher: U.S. Bureau of Mines
Published: 1994
Place of publication: Washington, D.C
Language: eng
Subjects: Coal trade -- Venezuela -- Costs -- Case studies; Coal trade -- United States -- Costs -- Case studies
Notes: Includes bibliographical references.
"December 1993."