Editore: Ore Dept Geol & Min Ind, 1942
Da: Larry W Price Books, Portland, OR, U.S.A.
Paperback. Condizione: Very Good. GMI Short Paper No 8, 27 pp., Orig White Paperback, 4to, ex lib 3-ring binder holes else VG.
Editore: United States Government Printing Office, 1951
Da: Jackson Street Booksellers, Omaha, NE, U.S.A.
Soft cover. Condizione: Very Good. Very good copy in blue paper card covers with black titles. 17 maps in back pocket. Name stamped on front cover. Wear at fore-edge corners. 8vo.