Género
Conservación y protección ambiental
The Unprotected Species
Sturgis, Melvin
The Barren Ground Caribou of Keewatin
Harper, Francis
Contos Dos Cerrados
(org.), Ananda Lima & Valney Dias Rigonato
Die Natur hat Recht
Weydt, Elisabeth
Into the deep
Acosta, Ignacio, Bidmon, Agnes, Bleibler, Jürgen, Bonaccini, Léonore, Bureau d'études, David, Michael, El Laboratorio de Artes Gráficas del Desierto de Atacama (LAGDA), Emmert, Claudia, Fourt, Xavier, Ickler, Charlotte, Linke, Armin, Neddermeyer, Ina, Õllek, Kristina, Rigby, Bethany, Stengel, Frauke, Wind, Caroline
Rambles with John Burroughs
De Loach, R. J. H.
Cork: Its Origin and Industrial Uses
Stecher, Gilbert Erwin
The Spell of the White Sturgeon
Kjelgaard, Jim
American Weasels
Hall, E. Raymond
Trees of Indiana
Deam, Charles Clemon
The Recent Mammals of Tamaulipas, México
Alvarez, Ticul
Birds in London
Hudson, W. H.
Humpback Whales in Glacier Bay National Monument, Alaska
United States. Marine Mammal Commission
Glacier National Park
United States. Department of the Interior
Lives of the Fur Folk
Haviland, Maud D.
Fitoterapia Aplicada
Gomes, Eugenia
Calentamiento global, codicia y necesidades humanas
Gough, Ian
Vida, saúde e ambiente
Poli, Rosalba, Conte, Andrea
The Great Red Frog
Ransom, Sidney
The Breath of Life
Burroughs, John
New England Salmon Hatcheries and Salmon Fisheries in the Late 19th Century
Various
The Boy With the U. S. Foresters
Rolt-Wheeler, Francis
The Lobster Fishery of Maine
Cobb, John N.
The Garden, You, and I
Wright, Mabel Osgood