Possible recovery of coal from waste at Illinois mines
By: by Cloyde M. Smith and David R. Mitchell.
Contributors: Mitchell, David Ray, 1898-
Series: University of Illinois bulletin ;; v. 34, no. 15
Publisher: University of Illinois
Published: 1936
Place of publication: Urbana, Ill
Language: eng
Number of pages: 44
Subjects: Coal mines and mining -- Illinois.; Coal preparation.