Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geological Survey Division, the Engineering Experiment Station of the University of Illinois, and the U.S. Bureau of Mines.Mode of access: Internet
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
"IMSRP-IV.""Cooperating agencies: Illinois State Geological Survey, Illinois Department of Energy an...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
"Illinois coal mining investigations cooperative agreement" (Report prepared under cooperation with ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
"Illinois coal mining investigations coöperative agreement. (This report was prepared under a coöpe...
Each volume also has a distinctive title.Mode of access: Internet.Prepared by: Illinois State Geolog...
On cover: vol. 1 no. 4.Prepared under a cooperative agreement between State Geological Survey, Dept....
Prepared under a cooperative agreement between the Illinois State Geological Survey, the Engineering...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
At head of title: State of Illinois. Department of registration and education. Division of the State...
At head of title: State of Illinois, Dept. of Registration and Education.Bibliography: p. 12.Mode of...
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
"IMSRP-IV.""Cooperating agencies: Illinois State Geological Survey, Illinois Department of Energy an...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
"Illinois coal mining investigations cooperative agreement" (Report prepared under cooperation with ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
"Illinois coal mining investigations coöperative agreement. (This report was prepared under a coöpe...
Each volume also has a distinctive title.Mode of access: Internet.Prepared by: Illinois State Geolog...
On cover: vol. 1 no. 4.Prepared under a cooperative agreement between State Geological Survey, Dept....
Prepared under a cooperative agreement between the Illinois State Geological Survey, the Engineering...
Illinois mining investigations prepared under a cooperative agreement between the Illinois State Geo...
At head of title: State of Illinois. Department of registration and education. Division of the State...
At head of title: State of Illinois, Dept. of Registration and Education.Bibliography: p. 12.Mode of...
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
"IMSRP-IV.""Cooperating agencies: Illinois State Geological Survey, Illinois Department of Energy an...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...