Keith, Stanley B., and Wilt, J.C., 1978, Supplemental road log no. 3, Tucson to Lordsburg via Interstate 10, in Callender, J.F., Wilt, J.C., Clemons, R.E., and James, H.L., eds., Land of Cochise, southeastern Arizona: New Mexico Geological Society 29th Field Conference Guidebook, p. 112-124.