Plants - people - and environmental quality : a study of plants and their environmental functions
Topic:
ENVIRONMENTPublisher/Date:
Washington, D.C. : U.S. Dept. of the Interior, National Park Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1972Note:
Includes bibliographical references (p. 129-[137])