• publisher: Champaign, Ill. (615 E. Peabody Dr., Champaign 61820) : Illinois State Geological Survey
  • creator: Grube, John P
  • Keyword: Petroleum Geology Illinois Perry County. Cypress Formation.
  • years: 1992.
  • pages: 49 p. :
  • class: TN872.I3
  • download: pdf file