Caputo, M.V. (2003) Geology of the Paria Canyon-Vermilion Cliffs Wilderness, Utah and Arizona. in D.A. Sprinkel, T.C. Chidsey Jr., and P.B. Anderson, eds., Geology of Utah's Parks and Monuments.Արխիվացված 2012-01-11 Wayback Machine Utah Geological Association, Salt Lake City, Utah.
Caputo, M.V. (2003) Geology of the Paria Canyon-Vermilion Cliffs Wilderness, Utah and Arizona. in D.A. Sprinkel, T.C. Chidsey Jr., and P.B. Anderson, eds., Geology of Utah's Parks and Monuments.Արխիվացված 2012-01-11 Wayback Machine Utah Geological Association, Salt Lake City, Utah.