Iowa Geological Survey109 Trowbridge HallIowa City, IA 52242(319) 335-1575FAX (319) 335-2754
An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa (Abstract) Palynostratigraphy of the Lower and Middle Pennsylvanian coals of Iowa (Abstract)
An introduction to the stratigraphic palynology of the Cherokee Group (Pennsylvanian) coals of Iowa (Abstract)
Palynostratigraphy of the Lower and Middle Pennsylvanian coals of Iowa (Abstract)