APA (7th ed.) Citation

Viereck, L. A., & Little, E. L. (1974). Guide to Alaska trees. U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Viereck, Leslie A., and Elbert L. Little. Guide to Alaska Trees. Washington: U.S. Dept. of Agriculture, Forest Service, 1974.

MLA (9th ed.) Citation

Viereck, Leslie A., and Elbert L. Little. Guide to Alaska Trees. U.S. Dept. of Agriculture, Forest Service, 1974.