@Article{169292312,
author="{Illinois State Geological Survey}",
title="Report of investigations",
year="1924",
month="1968",
publisher="Survey",
address="Urbana, Ill.",
note="Illinois State Geological Survey",
note="Nr. 1.1924 - 221.1968; damit Ersch. eingest.",
note="Urh. teils: State of Illinois, Department of Registration and Education, Division of the State Geological Survey",
issn="0073-5124",
language="English"
}