Coal in Pennsylvania
By: by William E. Edmunds and Edwin F. Koppe. Illus. by Albert Van Olden.
Contributors: Koppe, Edwin F., joint author.
Edition: [1st ed.
Publisher: Commonwealth of Pennsylvania, Topographic and Geologic Survey
Published: 1968
Place of publication: Harrisburg
Language: eng
Number of pages: 28
Subjects: Coal -- Pennsylvania.
Notes: Bibliography: p. 19.