Robert W. Gergory books & textbook
Geology of the Iron Mountain Kimberlite District and Nearby Kimberlitic Indicator Mineral Anomalies in Southeastern Wyoming
W. Dan Hausel Robert W. Gergory Roger H. Motten Wayne M. Sutherland
Wyoming State Geological Survey /2003T Paperback / 42 Pages
isbn-10: 1884589332 / isbn-13: 9781884589331
