APA (7th ed.) Citation

Walker, L. C. (1990). Forests: A naturalist's guide to trees and forest ecology. Wiley.

Chicago Style (17th ed.) Citation

Walker, Laurence C. Forests: A Naturalist's Guide to Trees and Forest Ecology. New York: Wiley, 1990.

MLA (9th ed.) Citation

Walker, Laurence C. Forests: A Naturalist's Guide to Trees and Forest Ecology. Wiley, 1990.