Coal
Subtitle: a petrographic approach
By: by Edwin F. Koppe
Series: Bulletin M -- 42; Bulletin M -- 42.
Publisher: Commonwealth of Pennsylvania, Department of Internal Affairs, Topographic and Geologic Survey
Published: 1960
Place of publication: [Harrisburg, Pa.]
Language: eng
Number of pages: 35
Subjects: Coal; Analysis; Petrology
Notes: Includes bibliographical references (p. 24).