Bettinger, Pete, 1962- Potential Timber Availability for Mechanized Harvestingin Oregon / Pete Bettinger, John Sessions, Loren Kellogg. -- 1.vyd.

In Western Journal of Applied Forestry. -- Vol.8, No.1. (1993), s. 11-15. graf.

I. Sessions, John
II. Kellogg, Loren D.
III. Western Journal of Applied Forestry. -- Vol.8, No.1. (1993), s. 11-15. graf.
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