@article{227144, author = {John, David A.}, url = {http://library.usi.edu/record/227144}, title = {The Conterminous United States Mineral Appraisal Program : background information to accompany folio of geologic, geochemical, geophysical, and mineral resources maps of the Tonopah 1⁰ by 2⁰ quadrangle, Nevada /}, publisher = {U.S. G.P.O. ;}, recid = {227144}, pages = {iii, 16 p. :}, address = {Washington :}, year = {1991}, }