Road log of the Upper Cretaceous and lower Tertiary geology and paleontology of extreme southwestern North Dakota. Field trip sponsored by the Pioneer Trails Museum, June 19–20, 1993, Bowman, North Dakota. Published by the North Dakota Geological Society.
Joseph A. Hartman and Allen J. Kihm. "The Marshall Lambert Symposium Contributions and Road Log" (1993). Geology and Geological Engineering Faculty Publications. 5.