Man and Nature; Or, Physical Geography as Modified by Human Action: Exploring Human Impact on Earth's Physical GeographyGeorge P. Marsh
The Earth as Modified by Human Action: Unveiling the Impact of Human Influence on Nature through Eco-conscious LiteracyGeorge P. Marsh
The Whelps of the Wolf: Exploring Nature, Conservation, and Wilderness in 19th Century AmericaGeorge P. Marsh