Southwest Treasure Hunter's Gem and Mineral Guide (6th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
Southwest Treasure Hunter's Gem and Mineral Guide (5th ed.): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
States of Neglect: How Red-State Leaders Have Failed Their Citizens and Undermined AmericaWilliam Kleinknecht