APA (7th ed.) Citation

American Forestry Association, Sampson, R. N., & Hair, D. (1990). Natural resources for the 21st century. Island Press.

Chicago Style (17th ed.) Citation

American Forestry Association, R. Neil Sampson, and Dwight Hair. Natural Resources for the 21st Century. Washington, D.C.: Island Press, 1990.

MLA (9th ed.) Citation

American Forestry Association, et al. Natural Resources for the 21st Century. Island Press, 1990.