APA (7th ed.) Citation

Viereck, L. A., & Little, E. L. (1972). Alaska trees and shrubs. Forest Service.

Chicago Style (17th ed.) Citation

Viereck, Leslie A., and Elbert Luther Little. Alaska Trees and Shrubs. Washington, DC: Forest Service, 1972.

MLA (9th ed.) Citation

Viereck, Leslie A., and Elbert Luther Little. Alaska Trees and Shrubs. Forest Service, 1972.