Oregon. Dept. of Geology and Mineral Industries; Couch, Richard W.; Johnson, Stephen; Gallagher, John Neil; Pietrafesa, Leonard J.(Oregon. Dept. of Geology and Mineral Industries., 1968-10)
Oregon. Dept. of Geology and Mineral Industries; Emilia, David A.; Berg, Joseph W.; Bales, W. E.; Applegate, Shelton P.; Heinrichs, Donald F.; Pietrafesa, Leonard J.(Oregon Department of Geology and Mineral Industries, 1968-02)
