Add to ORKGCover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, University of Illinois at Urbana-Champaign
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
Cover-title.At head of title: University of Illinois bulletin. vol. III, no. 22."Publications of the...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Prepared under a coo??perative agreement between the Engineering Experiment Station of the Universit...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover-title.University of Illinois bulletin. vol. IV, no. 33.Publications of the Engineering experim...
On cover: University of Illinois bulletin. Vol. XXII, no. 51."Illinois coal mining investigations co...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of registration and education. Division of the state...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
Cover-title.At head of title: University of Illinois bulletin. vol. III, no. 22."Publications of the...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State Geological Survey, Department of Mining Engineering, University of Illinois,...
Prepared under a coo??perative agreement between the Engineering Experiment Station of the Universit...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover-title.University of Illinois bulletin. vol. IV, no. 33.Publications of the Engineering experim...
On cover: University of Illinois bulletin. Vol. XXII, no. 51."Illinois coal mining investigations co...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
At head of title: State of Illinois. Department of Registration and Education. Division of the State...
At head of title: State of Illinois. Department of registration and education. Division of the state...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...
Cover title.Prepared as part of an investigation conducted by the Engineering Experiment Station, Un...
This report was prepared under a coo??perative agreement between the Engineering Experiment Station ...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering,...
Cover-title.At head of title: University of Illinois bulletin. vol. III, no. 22."Publications of the...
Prepared under a cooperative agreement between State Geological Survey, Dept. of Mining Engineering ...