H
Harold R. (Harold Rollin) 1 Wanless
2 works on record
Works
Classification of the Pennsylvanian Rocks of Illinois As of 1956; Illinois State Geological Survey Circular 217
Classification of the Pennsylvanian Rocks of Illinois As of 1956; Illinois State Geological Survey Circular 217
Pennsylvanian Faunas of the Beardstown, Glasford, Havana, and Vermont Quadrangles; Report of Investigations No. 205
Pennsylvanian Faunas of the Beardstown, Glasford, Havana, and Vermont Quadrangles; Report of Investigations No. 205