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- 研究 (2)
- addresses, essays, lectures (1)
- climatic changes (1)
- congresses (1)
- ecology (1)
- economics (1)
- educational aspects (1)
- effect of climate on (1)
- elias, norbert, (1)
- environmental sociology (1)
- factory and trade waste (1)
- germany (1)
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- human beings (1)
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- japan (1)
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- mass media and culture (1)
- mass media and public opinion (1)
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