A comparison of productivity for whole tree, tree length, and log length skyline thinning in 35 year old Douglas-fir stands of western Oregon
By: by Nathan E. Putnam.
Published: 1983
Language: eng
Number of pages: 113
Subjects: Logging, Skyline -- Oregon -- Cost effectiveness -- Case studies.
Notes: Typescript (photocopy).

"A paper submitted to Oregon State University in partial fulfillment of the requirements for the degree of Master of Forestry, 1983."

Bibliography: leaves 79-82.