APA (7th ed.) Citation

Geological Survey & United States. Environmental Protection Agency. (2002). The geographic face of the nation--land cover. The Survey.

Chicago Style (17th ed.) Citation

Geological Survey and United States. Environmental Protection Agency. The Geographic Face of the Nation--land Cover. Reston, VA: The Survey, 2002.

MLA (8th ed.) Citation

Geological Survey and United States. Environmental Protection Agency. The Geographic Face of the Nation--land Cover. The Survey, 2002.

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