Cambrian, Devonian and Mississippian rocks of the Four Corners area, in Cooper, J.C., ed., Geology of parts of Paradox, Black Mesa, and San Juan Basins, Four Corners Field Conference
Cooper, J.C., 1955, Cambrian, Devonian and Mississippian rocks of the Four Corners area, in Cooper, J.C., ed., Geology of parts of Paradox, Black Mesa, and San Juan Basins, Four Corners Field Conference: Four Corners Geological Society Guidebook.