United States. Forest Service. Rocky Mountain District & United States. Department of Agriculture. (1929). Rio Grande National Forest, Colorado. U.S. Dept. of Agriculture.
Chicago Style (17th ed.) CitationUnited States. Forest Service. Rocky Mountain District and United States. Department of Agriculture. Rio Grande National Forest, Colorado. Washington, D.C.: U.S. Dept. of Agriculture, 1929.
MLA (8th ed.) CitationUnited States. Forest Service. Rocky Mountain District and United States. Department of Agriculture. Rio Grande National Forest, Colorado. U.S. Dept. of Agriculture, 1929.
Warning: These citations may not always be 100% accurate.