APA (7th ed.) Citation

United States. Forest Service. (1929). National forests of California. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Forest Service. National Forests of California. [Place of publication not identified]: [publisher not identified], 1929.

MLA (9th ed.) Citation

United States. Forest Service. National Forests of California. [publisher not identified], 1929.

Warning: These citations may not always be 100% accurate.