1. Zeolites and associated authigenic silicate minerals in tuffaceous rocks of the Big Sandy Formation, Mohave County, Arizona Author/Creator: Sheppard, Richard A., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1973 Resource Type: Book Access & Availability: Loading
2. Zinc and lead deposits of northern Arkansas Author/Creator: Adams, George I. 1870-1932, (George Irving), author Publication/Creation: Washington : Department of the Interior, United States Geological Survey, 1904 Resource Type: Book Access & Availability: Loading
3. Zinc-lead-copper resources and general geology of the upper Mississippi Valley district Author/Creator: Heyl, Allen V. 1918-2008, (Allen Van), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1955 Resource Type: Book Access & Availability: Loading