Peng, Syd S. 1939- Longwall mining / Syd S. Peng - 2nd ed. - Morgantown, WV : Department of Mining Engineering, West Virginia University, c2006. - xiii, 621 p. : ill. ; 24 cm. Includes bibliographical references and indexes. English. ISBN: 9780978938307 0978938305 LCCN: 2006907903 Subjects--Topical Terms: Longwall mining. LC Class. No.: TN275 / .P423 2006 Dewey Class. No.: 622.334/PEL