Origin of the boghead coals
By: by Reinhardt Thiessen.
Series: Geological Survey professional paper -- 132-I; Shorter contributions to general geology
Publisher: U.S. Govt. Print. Off.
Published: 1925
Place of publication: [Washington
Language: eng
Number of pages: 137
Subjects: Coal -- Geology.; Bituminous coal.; Torbanite.; Rocks, Sedimentary.
Notes: Includes bibliographical footnotes and index.