Género
Conservación y protección ambiental
Birds in Town & Village
Hudson, W. H.
A Book-Lover's Holidays in the Open
Roosevelt, Theodore
The Story of My Heart: An Autobiography
Jefferies, Richard
Wild Animals at Home
Seton, Ernest Thompson
Birds and Bees, Sharp Eyes, and Other Papers
Burroughs, John
Woodland Tales
Seton, Ernest Thompson
The Formation of Vegetable Mould Through the Action of Worms
Darwin, Charles
The Wonders of the Jungle, Book One
Ghosh, Sarath Kumar
Hemp
Robinson, Brittain B.
Man and Nature; Or, Physical Geography as Modified by Human Action
Marsh, George P.
Our Vanishing Wild Life: Its Extermination and Preservation
Hornaday, William T.
La Argentina transgénica
Lapegna, Pablo
The Extermination of the American Bison
Hornaday, William T.
The Lay of the Land
Sharp, Dallas Lore
The Rules of the Game
White, Stewart Edward
Studies of Trees
Levison, Jacob Joshua
The White Heart of Mojave: An Adventure with the Outdoors of the Desert
Perkins, Edna Brush
The Child's Book of Nature
Hooker, Worthington
Secrets of the Woods
Long, William J.
Shelters, Shacks and Shanties
Beard, Daniel Carter
Qual o valor da natureza?
Lourenço, Daniel Braga
La Montaña
Reclus, Elisée
El Arroyo
Reclus, Elisée
Platero y yo
Jiménez, Juan Ramón