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Showing below keyword matches in entire database for "Frederick Jackson Turner":
| Sowards, Adam M. 'He's a Natural': Justice William O. Douglas and the American Environmental Tradition. Ph.D. Dissertation: Arizona State University, 2001. | |
| Environmental Sciences | |
| Keywords: Aldo Leopold | environmental sciences | Frederick Jackson Turner | Henry David Thoreau | John Muir | Sierra Club | William O. Douglas |