Stratigraphic nomenclature of Cambrian and Lower Ordovician rocks of eastern-most southern Arizona and adjacent western-most New Mexico /
Hayes, Philip Thayer,1923-
Geological Survey (U.S.)
Washington : U.S. Govt. Print. Off.,
1972.
Bibliography: p. 20-21.
Geology, Stratigraphic
Geology, Stratigraphic
Geology, Stratigraphic
Geology, Stratigraphic