Earthcare : : global protection of natural areas : 14th Biennial Wilderness Conference / [electronic resource] / [editor, Vivien E. Fauerbach].. — [New York] : : National Audubon Society,, c1975.. — viii, 202 p. (p. 185-202 advertisements) : : ill. ; 26 cm.
"Co-sponsors: National Audubon Society/Sierra Club."
Includes bibliographies.
75329428
Nature conservation--Congresses. Environmental protection--Congresses. Conservation of natural resources--Congresses.