Conservación y protección ambiental

The Fall of the Year

Sharp, Dallas Lore

The Stories Mother Nature Told Her Children

Andrews, Jane

The New North

Cameron, Agnes Deans

Wake-Robin

Burroughs, John

Science of Trapping

Kreps, Elmer Harry

Wild Nature Won By Kindness

Brightwen, Mrs.

The Book of the National Parks

Yard, Robert Sterling

African Nature Notes and Reminiscences

Selous, Frederick Courteney

A Traveller in Little Things

Hudson, W. H.

Woodcraft

Sears, George Washington

The Life of the Fields

Jefferies, Richard

Alaska Days with John Muir

Young, Samuel Hall

How We Are Fed: A Geographical Reader

Chamberlain, James Franklin

The Beauties of Nature, and the Wonders of the World We Live In

Lubbock, John, Sir

Bird Day; How to prepare for it

Babcock, Charles Almanzo

The Fight for Conservation

Pinchot, Gifford

Wilderness Ways

Long, William J.

The School Book of Forestry

Pack, Charles Lathrop

The Germ: Thoughts towards Nature in Poetry, Literature and Art

Various

The Grizzly King

Curwood, James Oliver

Guardiões Da Natureza

Ribeiro, Clésio

Mapeamento Ambiental Integrado: Práticas em Ecologia da Paisagem

Weber, Markus

A Florida Sketch-Book

Torrey, Bradford

Hunting the Grisly and Other Sketches

Roosevelt, Theodore