@article{119789, recid = {119789}, author = {Cobban, William A.,}, title = {The Upper Cretaceous ammonite Rhaeboceras Meek in the western interior of the United States /}, publisher = {Dept. of the Interior, U.S. Geological Survey,}, address = {[Reston, Va.?] :}, pages = {iii, 15 p., 14 p. of plates :}, year = {1987}, url = {http://library.usi.edu/record/119789}, }