Sulfur reduction of Illinois coals
Subtitle: washability tests
By: Roy J. Helfinstine ... [et al.].
Series: Illinois State Geological Survey. Environmental geology notes -- no.34; Environmental geology notes (Illinois State Geological Survey) -- no.34
Published: 1970
Place of publication: Urbana
Language: eng
Number of pages: 12
Subjects: Coal; Coal washing; Testing; Sulphur content
Notes: Cover title.