APA (7th ed.) Citation

Vale, T. R. (1982). Plants and people: Vegetation change in North America. Association of American Geographers.

Chicago Style (17th ed.) Citation

Vale, Thomas R. Plants and People: Vegetation Change in North America. Washington, DC: Association of American Geographers, 1982.

MLA (9th ed.) Citation

Vale, Thomas R. Plants and People: Vegetation Change in North America. Association of American Geographers, 1982.

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