Dwain Berggren

• A Guide to the geology of the Dundee area
• A guide to the geology of the Carlinville area, Macoupin County, Illinois
• A guide to the geology of the Farmer City area, DeWitt County, Illinois
• A guide to the geology of the Hillsdale area
• Guide leaflet, geological science field trip, Palos Hills area, Cook and Du Page Counties
• Measuring coal seam thicknesses with normal-lateral electric logs