Bergendahl, M. H. books & textbook
Principal gold-producing districts of the United States, (Geological Survey professional paper 610)
Albert Herbert Koschmann M. H. Bergendahl
U.S. Dept. of the Interior /1968T Hardcover / 283 Pages
Stratigraphy of Parts of De Soto and Hardee Counties, Florida
Department of the Interior /1956-01-01 Paperback
PRINCIPAL GOLD-PRODUCING DISTRICTS OF THE UNITED STATES Geological Survey Professional Paper 610
Koschmann, A. H. & Bergendahl, M. H.
Government Printing Office /1968T Paperback
Gold in the United States (exclusive of Alaska and Hawaii) (Mineral Investigations Resource Map, MR-24)
US Geological Survey /1962T Map
Principal Gold-Producing Districts of the United States: Geological Survey Profe
Koschmann, A. H. and M. H. Bergendahl
U. S. Government Printing Office /1968T Hardcover
Ore deposits of the Kokomo-Tenmile District, Colorado, (Geological Survey professional paper 652)
U.S. Govt. Print. Off /1971T Unknown Binding / 53 Pages
Principal Gold-Producing Districts of Colorado
Koschmann, A. H. Bergendahl, M. H.
Carson Enterprises / Paperback
isbn-10: 0941620476 / isbn-13: 9780941620475
