Factors affecting the cost of tractor logging in the California pine region
By: M.E. Krueger
Series: Bulletin -- no. 474; Bulletin (California Agricultural Experiment Station) -- 474.
Publisher: Agricultural Experiment Station
Published: 1929
Place of publication: Berkeley, Cal
Language: eng
Number of pages: 44
Subjects: Tractors; Costs; Logging
Notes: Cover title.