Environmental education in the light of the Tbilisi conference.

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书目详细资料
格式:	图书
语言:	英语
出版:	Paris : UNESCO, c1980.
主题:	Ecology > Study and teaching > Addresses, essays, lectures. Nature > Study and teaching > Addresses, essays, lectures.
标签:	添加标签没有标签, 成为第一个标记此记录!

实物特征
实物描述:	100 p.
ISBN:	923101787x

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