The Principles of Conservation - USFS
Posted: Mon Aug 23, 2010 10:32 pm
The Principles of Conservation by Gifford Pinchot, first Chief of the Forest Service (Google Doc)...
https://docs.google.com/fileview?id=0B1 ... MzJk&hl=en
https://docs.google.com/fileview?id=0B1 ... MzJk&hl=en