Berg, Alan B.; Bell, John F.; Harmon, Wendell H.; Aulerich, D. E.; Johnson, K. N.; Ruth, Robert H.; Gourley, Jonna; Overton, W. Scott; Wilson, Leo W.; Chambers, Charles J. Jr; Pierson, Richard N.; Randall, Robert M.; Bradshaw, George; Hockett, Bert; Rombach, Jim(Corvallis : School of Forestry, Oregon State University, 1976., 1976-03)
