A computer program to calculate the susceptibility of spruce-fir stands to spruce beetle outbreaks
By: J.A. Logan, J.M. Schmid, and M.S. Mehl
Contributors: Schmid, J. M; Mehl, M. S; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
Series: Research note RM -- 393
Publisher: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Published: 1980
Place of publication: Fort Collins, Colo
Language: eng
Subjects: Spruce -- Diseases and pests; Spruce -- Data processing
Notes: Caption title

"October 1980."

Bibliography: p. 2