Thinnings in Douglas-fir
By: by John Arthur Ifft.
Published: 1961
Language: eng
Number of pages: 30
Subjects: Forest thinning.; Douglas fir.
Notes: Typescript (photocopy).

"A technical report submitted to Oregon State College in partial fulfillment of the requirements for the degree of Master of Forestry, 1961."

Bibliography: leaves 28-30.