Frequency of external defect and skidding damage in ponderosa pine stands in the Black Hills
By: J.M. Schmid, S.A. Mata, and C.B. Edminster.
Contributors: Mata, S. A.; Edminster, Carleton B.; Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.).
Series: Research note RM -- 496.
Publisher: USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Published: 1989
Place of publication: [Fort Collins, Colo.]
Language: eng
Subjects: Ponderosa pine.; Pine -- Abnormalities -- South Dakota.
Notes: Caption title.

"December 1989."