Forest soils of the Douglas-fir region /

per Heilman, Paul E., 1931-
Publicat 1981

Silvicultural management strategies for pests of the interior Douglas-fir and Grand fir forest types : proceedings of a symposium held, February 14-16, 1984, Spokane, Washington /

Publicat 1984

Tree planting in the inland northwest : shortcourse proceedings held at Washington State University, Pullman, 17-19 February, 1976 /

Publicat 1976