guide for forest soil examination in the Douglas-fir region.
Contributors: Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
Edition: Rev.
Publisher: U.S.D.A. Forest Service, Pacific Northwest Forest and Range Experiment Station
Published: 1950
Place of publication: Portland, Or
Language: eng
Number of pages: 32
Subjects: Forests and forestry -- Oregon.; Soils.; Forest soils -- Northwest, Pacific.
Notes: Bibliography: p. 30-32.