The conterminous United States Mineral Assessment Program : Background information to accompany folio of geologic,geochemical,remote sensing,and mineral resources maps of the Butte 1o x 2o quadrangle,Montana / J.E.Elliott,C.M.Trautwein,C.A.Wallace и др., 1993. - 17 p. - Текст : непосредственный.
Mineral resource potential of Mount Massive wilderness, Lake County, Colorodo / R.E. van Loenen,G.K.Lee,D.L.Campbell,J.R.Thompson, 1989. - VI,18 p. p. - Текст : непосредственный.
Mineral resources of the Fish Creek Canyon, Road Canyon and Mule Canyon wilderness study areas, San Juan County, Utah / D.J.Bove,D.R.Shawe,G.K.Lee и др., 1989. - V,12 p. p. - Текст : непосредственный.
Mineral resources of the Holy Cross Wilderness Area, Eagle, Pitkin, and Lake Counties, Colorado / A.R.Wallace,G.K.Lee,D.L.Campbell и др., 1989. - VI,22 p. p. - Текст : непосредственный.