Petroleum and natural gas potentialities, in Kiersch, G.A., Mineral resources, Navajo-Hopi Indian Reservations, Arizona-Utah, Volume I, Metalliferous minerals and mineral fuels

Brown, S.C., 1955, Petroleum and natural gas potentialities, in Kiersch, G.A., Mineral resources, Navajo-Hopi Indian Reservations, Arizona-Utah, Volume I, Metalliferous minerals and mineral fuels: Tucson, University of Arizona Press, p. 64-72.