APA (7th ed.) Citation

Little, E. L. (1953). Check list of native and naturalized trees of the United States (including Alaska). U.S. Dept. of Agriculture, Forest Service.

Chicago Style (17th ed.) Citation

Little, Elbert L. Check List of Native and Naturalized Trees of the United States (including Alaska). Washington, D.C.: U.S. Dept. of Agriculture, Forest Service, 1953.

MLA (9th ed.) Citation

Little, Elbert L. Check List of Native and Naturalized Trees of the United States (including Alaska). U.S. Dept. of Agriculture, Forest Service, 1953.