Mineral resources of the Trigo Mountains wilderness study area, La Paz County, Arizona / D. R. Sherrod, R. M. Tosdal, R. B. Vaughn, 1989. - V,16 p. p. - Текст : непосредственный.
Mineral resources of the Swansea Wildernes Study Area, La Paz and Mohave Counties, Arizona / R.M.Tosdal,R.G.Eppinger,H.R.Blank и др., 1990. - VI, 24 p. 24 p. - Текст : непосредственный.
Mineral resources of the Rawhide Mountains Wilderness study Area,La Paz and Mohave Counties,Arizona / R.M.Tosdal,B.Bryant,R.H.Hill и др., 1990. - VI,24 p. p. - Текст : непосредственный.
Mineral resources of the Cactus Plain and East cactus Plain Wilderness study Areas,La Paz County,Arizona / R.M.Tosdal и др., 1990. - VI,D32 p. p. - Текст : непосредственный.
Mineral resources of the Muggins mountains study area, Yuma County, Arizona / D.B.Smith,R.M.Tosdal,J.A.Pitkin и др., 1989. - V,16 p. p. - Текст : непосредственный.