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- ecology (5)
- 研究 (5)
- environmental protection (4)
- human ecology (4)
- nature conservation (4)
- planning (3)
- sustainable development (3)
- biosphere (2)
- congresses (2)
- environmental aspects (2)
- environmental policy (2)
- land use (2)
- law and legislation (2)
- social aspects (2)
- adaptation (biology) (1)
- architectural design (1)
- architecture (1)
- architecture / criticism (1)
- biodiversity (1)
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出版社:
University of Minnesota Center for Continuation Study of the General Extension Division,
出版日期: 1960.
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