Earthcare :  global protection of natural areas : 14th Biennial Wilderness Conference / 
[editor, Vivien E. Fauerbach] 
 - New York :  National Audubon Society,  1975 
 - viii, 202 p. [p. 185-202 advertisements] :  ill. ;  26 cm. 
<br/><br/> 'Co-sponsors: National Audubon Society/Sierra Club' 
<br/><br/>Includes bibliographies 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nature conservation--Congresses<br/>Environmental protection--Congresses<br/>Conservation of natural resources--Congresses