Washington, DC: United States Geological Survey/USGS/Government Printing Office/GPO, 1970. Softcover. Item #46754
Regional stratigraphic studies and ammonite zonation are used in interpreting complex intertonguing and subtle facies changes in rocks of Late Cretaceous and eartly Tertiary age. 53 pages with map, diagrams, photographs, tables, bibliography and index. Bound in original stiff gray paper printed in black. A near fine copy.