Topic: Trees
Topic: History
- At work in Penn's Woods : the Civilian Conservation Corps in Pennsylvania
- The CCC camps of Union County (1933-1942) : life and work in the Civilian Conservation Corps
- The Civilian Conservation Corps
- The Civilian Conservation Corps a peaceful revolution
- The big burn Teddy Roosevelt and the fire that saved America
- Leave it as it is : a journey through Theodore Roosevelt's American wilderness
Author: Simard, S. (Suzanne)
Author: Tapper, Ethan
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- Conserving Mount Nittany : a dynamic environmentalism
- The CCC camps of Union County (1933-1942) : life and work in the Civilian Conservation Corps
- Rescuing the planet : protecting half the land to heal the Earth
- The magic of the mountain : the campaign to save Mount Nittany, 1984
- Finding the mother tree [LP] : discovering the wisdom of the forest
