Mineral resources of the Muggins Mountains Wilderness Study Area, Yuma County, Arizona, Chapter D, in Mineral resources of Wilderness Study Areas: Southwestern and south-central Arizona

Smith, D.B., Tosdal, R.M., Pitkin, J.A., Kleinkopf, M.D., and Wood, R.H., II, 1989, Mineral resources of the Muggins Mountains Wilderness Study Area, Yuma County, Arizona, Chapter D, in Mineral resources of Wilderness Study Areas: Southwestern and south-central Arizona: U.S. Geological Survey Bulletin 1702-D, p. D1-D16.