Ambrosia-beetle infestation of down coniferous timber in Benton County, Oregon
By: by Norman Elden Johnson.
Published: 1957
Language: eng
Number of pages: 154
Subjects: Conifers -- Diseases and pests.; Ambrosia beetles.; Lumbering -- Oregon -- Benton County.
Notes: Typescript.

Thesis (M.S.)--Oregon State College, 1957.

Bibliography: leaves 148-154.