http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Bouguer gravity map of Nevada, Tonopah sheet
1 map : color ; 56 x 92 cm. folded in env. 30 x 23 cm.
D.L. Healey, D.B. Snyder, and R.R. Wahl.
Contour interval 200 feet with supplementary contours at 100-foot intervals.
Base map: U.S. 1:250,000 series, Tonopah sheet, 1973.
Map (Nevada Bureau of Mines and Geology) ; 73