1. The zenith angle Author/Creator: Sterling, Bruce Publication/Creation: New York : Del Rey, 2004 Format: Book Edition: 1st edition. Access & Availability: Loading
2. Zoning of the Bitter Creek vanadium-uranium deposit near Uravan, Colorado Author/Creator: Heyl, Allen V. 1918-2008, (Allen Van), author Publication/Creation: [Washington, D.C.] : [United States Department of the Interior, Geological Survey], [1957] Format: Book Access & Availability: Loading