Coal in Pennsylvania
By: by William E. Edmunds.
Edition: 2nd ed.
Series: Educational series / Pennsylvania Geological Survey -- 7
Publisher: Commonwealth of Pennsylvania, Dept. of Conservation and Natural Resources, Office of Conservation and Engineering Services, Bureau of Topographic and Geologic Survey
Published: 2004
Place of publication: Harrisburg
Language: eng
Number of pages: 28
Subjects: Coal -- Pennsylvania
Notes: "Fourth series."

Includes bibliographical references (p. 19).