Xenoliths of the San Francisco Volcanic Field, northern Arizona, in Karlstrom, T.N.V., Swann, G.A., and Eastwood, R.L., eds., Geology of northern Arizona with notes on archaeology and paleoclimate, Part 2 - Area studies and field guides

Stoeser, D.B., 1974, Xenoliths of the San Francisco Volcanic Field, northern Arizona, in Karlstrom, T.N.V., Swann, G.A., and Eastwood, R.L., eds., Geology of northern Arizona with notes on archaeology and paleoclimate, Part 2 - Area studies and field guides: Geological Society of America, Rocky Mountain Section, Annual Meeting, 27th, Flagstaff, Ariz., 1974, p. 530-545.