Draft environmental impact statement on the Energy Transportation Systems Inc. coal slurry pipeline transportation project /

Cover title : Environmental impact statement energy transportation system, inc.

Green River - Hams Fork regional coal environmental impact statement : draft /

April 1980.

San Juan River regional coal : environmental impact statement.

"March 1984"--Final.

Longwall and room-and-pillar productivity : a review of the U.S. coal mines /

Includes bibliographical references.