1. Quality characteristics of ground water in the Ozark Aquifer of northwestern Arkansas, southeastern Kansas, southwestern Missouri, and northeastern Oklahoma, 2006-07 Author/Creator: Pope, Larry M. Publication/Creation: Reston, Va. : U.S. Geological Survey, 2009 Resource Type: Book Access & Availability: Loading
2. Quartz crystal deposits of western Arkansas Author/Creator: Engel, A. E. J. 1916- (Albert Edward John) Publication/Creation: Washington [D.C.] : U.S. G.P.O., 1952 Resource Type: Book Is Part Of: U.S. Geological Survey bulletin, no. 973 A-F. Access & Availability: Loading
3. Quartz crystal deposits of western Arkansas : geology of an important domestic source of quartz for optical and oscillator use Author/Creator: Engel, A. E. J. 1916- (Albert Edward John), author Publication/Creation: [Washington, D.C.] : United States Department of the Interior, Geological Survey, 1952 Resource Type: Book Access & Availability: Loading
4. Quaternary geologic map of the Ozark Plateau 4° x 6° quadrangle, United States Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, VA : The Survey ; Denver, CO : For sale by Map Distribution, 1993 Resource Type: Map Access & Availability: Loading