1. Geologic map of the Winkelman quadrangle, Pinal and Gila Counties, Arizona [cartographic material]
1974. 2012-04-11T13:53:30Z. 2012-04-16T15:52:19Z. Krieger, Medora Louise Hooper, 1905-1994. The Survey. English. Public. Arizona, Pinal County, and Gila County.
