Corals from well cores of Madison group, Williston basin /
Sando, William Jasper.
Geological Survey (U.S.)
Washington, [D.C.] : U.S. G.P.O.,
1960.
Three folded leaves in pocket.
Includes index.
Bibliography: p. 186-187.
Corals, Fossil.
Paleontology
Paleontology