APA (7th ed.) Citation

United States. Forest Service. Pacific Northwest Region. (1970). Crooked River National Grassland, Oregon (Rev. 1970.). [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Crooked River National Grassland, Oregon. Rev. 1970. [Portland]: [publisher not identified], 1970.

MLA (9th ed.) Citation

United States. Forest Service. Pacific Northwest Region. Crooked River National Grassland, Oregon. Rev. 1970. [publisher not identified], 1970.