Mineral resources of Eight Wilderness study areas bordering zion National Park, Washington and Kane counties, Utah / R.E. van Loenen,E.G.Sable,H.R.Blank и др., 1989. - 23 p. - Текст : непосредственный.
Mineral resources of the Adobe Town wilderness study area, Sweetwater County, Wyoming / R.E. van Loenen,R.H.Hill,V.Banket и др., 1989. - VI,15 p. 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.