Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.), DeByle, N. V., & Winokur, R. P. (1985). Aspen: Ecology and management in the Western United States. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station.
Chicago Style (17th ed.) CitationRocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.), Norbert V. DeByle, and Robert P. Winokur. Aspen: Ecology and Management in the Western United States. Fort Collins, Colo.: U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1985.
MLA (9th ed.) CitationRocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.), et al. Aspen: Ecology and Management in the Western United States. U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station, 1985.