APA (7th ed.) Citation

Lea, C. (2011). Vegetation classification guidelines (National Park Service vegetation inventory, version 2.0.). U.S. Department of the Interior, National Park Service, Natural Resource Program Center.

Chicago Style (17th ed.) Citation

Lea, Chris. Vegetation Classification Guidelines. National Park Service vegetation inventory, version 2.0. Fort Collins, Colorado: U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011.

MLA (9th ed.) Citation

Lea, Chris. Vegetation Classification Guidelines. National Park Service vegetation inventory, version 2.0. U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011.