Sanford R.F. Hydrogeology of Jurassic and Triassic wetlands in the Colorado Plateau and origin of tabular sandstone uranium deposits / R.F.Sanford, 1994. - IV,40 p. p. - Текст : непосредственный.
Sanford R.F. Ground-water flow and migration of hydrocarbons to the Lower Permian White Rim Sandstone,Tar Sand Triangle,southeastern Utah / R.F.Sanford, 1995. - 24 p. - Текст : непосредственный.