Geology of coal
By: Jack A. Simon and M.E. Hopkins
Publisher: Society of Mining Engineers of the American Insitute of Mining, Metallurgical, and Petroleum Engineers
Published: 1973
Place of publication: New York
Language: eng
Number of pages: 39
Subjects: Coal; Geology
Other titles: Elements of practical coal mining.
Notes: Reprinted from: Elements of practical coal mining.