APA (7th ed.) Citation

Little, E. L. Checklist of United States trees: Native and naturalized.

Chicago Style (17th ed.) Citation

Little, Elbert L. Checklist of United States Trees: Native and Naturalized.

MLA (9th ed.) Citation

Little, Elbert L. Checklist of United States Trees: Native and Naturalized.

Warning: These citations may not always be 100% accurate.