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Subjects
Environmental, Pollution Control, TECHNOLOGY & ENGINEERING, Pollution, SCIENCE, Air, Air quality management, Animals, Biological Diversity, Climatic changes, Conservation of natural resources, Environmental Policy, Environmental Science (see also Chemistry, Environmental aspects, Environmental policy, Environmental), Forest conservation, Geschichte (1914-1940), History, Journalistiek, Juvenile literature, Liberalism, Liberalisme, Liberalismus, Life SciencesPlaces
United States, Opal Creek Region (Marion County), Opal Creek Region (Marion County, Or.), OregonTime
20th centuryID Numbers
- OLID: OL711539A
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| August 27, 2008 | Edited by RenameBot | fix author name |
| April 1, 2008 | Created by an anonymous user | initial import |







