• publisher: Urbana : Illinois State Geological Survey
  • creator: Armon, William John Rees, Orin Wainwright, 1898- joint author
  • contributor: Rees, Orin Wainwright, 1898- joint author.
  • Keyword: Oil-shales Illinois.
  • years: 1960.
  • pages: 22 p. :
  • class: QE105
  • download: pdf file