FOSSIL PLANTS FROM THE COLGATE MEMBER OF THE FOX HILLS SANSTONE AND ADJACENT STRATA: PROFESSIONAL PAPER 189-I
Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1939. Soft cover. Pages 239 through 275 which include plates 47 through 63. with maps, diagrams, photographs and references. Bound in original stiff gray covers printed in black. A fine copy. More