Petrographic analysis of coal by the particle count method
By: by Bryan C. Parks.
Series: Illinois.  State Geological Survey.  Report of investigations; no. 143
Publisher: Illinois State Geological Survey
Published: 1949
Place of publication: Urbana
Language: eng
Number of pages: 424
Subjects: Coal -- Analysis.; Particles.
Notes: Bibliographical footnotes.
Cover title.
Reprinted from Economic Geology, v. 44, pp. 376-424, 1949.