APA (7th ed.) Citation

Forest Soils Committee of the Douglas Fir Region. (1957). An introduction to forest soils of the Douglas-fir region of the Pacific Northwest. Western Forestry and Conservation Association.

Chicago Style (17th ed.) Citation

Forest Soils Committee of the Douglas Fir Region. An Introduction to Forest Soils of the Douglas-fir Region of the Pacific Northwest. Portland 4, Or.: Western Forestry and Conservation Association, 1957.

MLA (8th ed.) Citation

Forest Soils Committee of the Douglas Fir Region. An Introduction to Forest Soils of the Douglas-fir Region of the Pacific Northwest. Western Forestry and Conservation Association, 1957.