effect of preplanned skid trails and winching on a partial-cut
By: by George Richard Bradshaw.
Published: 1979
Language: eng
Number of pages: 68
Subjects: Logging -- Sierra Nevada Region (Calif. and Nev.) -- Environmental aspects -- 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, 1979."

Bibliography: leaves 45-46.