On cover: vol. 1 no. 4.Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering of the University of Illinois, and U.S. Bureau of Mines.Mode of access: Internet
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
" ... prepared by the Illinois Department of Commerce and Community Affairs' Office of Coal Developm...
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 ...
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 ...
Numbered on cover: Vol. II, no. 1.At head of title: State Geological Survey, Department of Mining En...
Each volume also has a distinctive title.Mode of access: Internet.Prepared by: Illinois State Geolog...
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 coöperative agreement. (This report was prepared under a coöpe...
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...
Field work by G.H. Cady, F.H. Kay, K.D. White, and others.Illinois mining investigations prepared un...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
" ... prepared by the Illinois Department of Commerce and Community Affairs' Office of Coal Developm...
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 ...
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 ...
Numbered on cover: Vol. II, no. 1.At head of title: State Geological Survey, Department of Mining En...
Each volume also has a distinctive title.Mode of access: Internet.Prepared by: Illinois State Geolog...
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 coöperative agreement. (This report was prepared under a coöpe...
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...
Field work by G.H. Cady, F.H. Kay, K.D. White, and others.Illinois mining investigations prepared un...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
"Illinois coal mining investigations, cooperative agreement. (This report was prepared under a coope...
" ... prepared by the Illinois Department of Commerce and Community Affairs' Office of Coal Developm...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...