@article{64816, author = {Cobban, William A., and Reeside, John B.}, url = {http://library.usi.edu/record/64816}, title = {Correlation of the cretaceous formations of the Western interior of the United States /}, publisher = {Geological Society of America,}, recid = {64816}, pages = {[34 p.] :}, address = {New York :}, year = {1952}, }