Criado por lclark2
quase 10 anos atrás
|
||
George Perkins Marsh
(1801 - 1882)
Ralph Waldo Emerson
(1803 - 1882)
Henry David Thoreau
(1817 - 1862)
John Muir
(1838 - 1914)
Gifford Pinchot
(1865 - 1946)
Hetch-Hetchy Valley
Aldo Leopold
(1887 - 1948)
Grey Owl
(Archibald Belany: 1888 - 1938)