Cenozoic evolution of the northern half of the Tucson basin, Arizona [abs.], in Geological Society of America, Cordilleran Section, Program, 64th Annual Meeting, Tucson, Ariz., April 11-13, 1968

Pashley, E.F., 1968, Cenozoic evolution of the northern half of the Tucson basin, Arizona [abs.], in Geological Society of America, Cordilleran Section, Program, 64th Annual Meeting, Tucson, Ariz., April 11-13, 1968: Geological Society of America, p. 92.