A survival study of Douglas fir plantings of the Umpqua National Forest, Oregon
By: by Darrell Ziegler.
Published: 1948
Language: eng
Number of pages: 24
Subjects: Douglas fir -- Oregon -- Umpqua National Forest -- Seedlings.
Notes: Typescript (photocopy).

"A thesis presented to the Faculty of the School of Forestry, Oregon State College."