Geologic Formations of Western Oregon (west of Longitude 1210 30ʹ) John D. Beaulieu Published: 1971 Total Pages: 310 Get eBook
Mineral Resources of the Blue Canyon and Owyhee Breaks Wilderness Study Areas, Malheur County, Oregon Dean B. Vander Meulen Published: 1990 Total Pages: 46 Get eBook
Bibliography of the Geology and Mineral Resources of Oregon Published: 1961 Total Pages: 216 Get eBook
Catalog of Copyright Entries. Third Series Library of Congress. Copyright Office Published: 1964 Total Pages: 1222 Get eBook
