The base of the Upper Jurassic Morrison Formation in east-central Utah : a review of the first description of the base of the Morrison Formation in east-central Utah and some later modifications /
O'Sullivan, Robert Brett,1923-
Washington, D.C. : U.S. G.P.O. ; Alexandria, VA : For sale by the Branch Distribution, U.S. Geological Survey,
1985.
Bibliography: p. 16-17.
Geology