ISBN 0943763509 books & textbook
The Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan And Mine Your Own Gems & Minerals: Southwest States
Rygle, Kathy J. Pedersen, Stephen F.
Gemstone Pr /2006T Paperback / 200 Pages
isbn-10: 0943763509 / isbn-13: 9780943763507