Robinette, G. O. (1972). Plants, people, and environmental quality: A study of plants and their environmental functions. Washington, D.C: U.S. Department of the Interior. National Park Service.
Παραπομπή Chicago StyleRobinette, Gary O. Plants, People, and Environmental Quality: A Study of Plants and Their Environmental Functions. Washington, D.C: U.S. Department of the Interior. National Park Service, 1972.
Παραπομπή MLARobinette, Gary O. Plants, People, and Environmental Quality: A Study of Plants and Their Environmental Functions. Washington, D.C: U.S. Department of the Interior. National Park Service, 1972.
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