@article{229685, author = {O'Sullivan, Robert Brett,}, url = {http://library.usi.edu/record/229685}, title = {The Jurassic Wanakah and Morrison formations in the Telluride-Ouray-western Black Canyon area of southwestern Colorado : revision of the Wanakah Formation and basal Morrison Formation in part of the Black Canyon of the Gunnison River /}, publisher = {U.S. G.P.O.,}, recid = {229685}, pages = {iii, 24 p. :}, address = {Washington :}, year = {1992}, }