Protecting the wild :  parks and wilderness, the foundation for conservation / 
edited by George Wuerthner, Eileen Crist, Tom Butler. 
 - xxviii, 362 páginas :  24 ilustraciones 
<br/><br/> Springer eBooks 
<br/><br/><label>ISBN: </label>9781610915519 
<br/><br/><label>LC Class. No.: </label>QH75-77