Earthcare : global protection of natural areas : 14th Biennial Wilderness Conference - Wilderness Conference 1975 : New York, N.Y.); Fauerbach, Vivien E; National Audubon Society; Sierra Club (New York : National Audubon Society, 1975)
'Co-sponsors: National Audubon Society/Sierra Club'
Includes bibliographies
Keywords: Nature conservation -- Congresses; Environmental protection -- Congresses; Conservation of natural resources -- Congresses