%0 Magazine Article
%T Report of investigations
%! Ill., State Geol. Surv., Rep. Invest
%A Illinois State Geological Survey
%D 1924
%8 1968
%I Survey
%C Urbana, Ill.
%@ 0073-5124
%G English
%F 169292312
%O Illinois State Geological Survey
%O Nr. 1.1924 - 221.1968; damit Ersch. eingest.
%O Urh. teils: State of Illinois, Department of Registration and Education, Division of the State Geological Survey
%L 550
%9 Text
%9 Zeitschrift