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Save the Earth!
Betty Miles
其他書名
An Ecology Handbook for Kids
出版Knopf, 1974
ISBN03948265829780394826585
URLhttp://books.google.com.hk/books?id=18ssHQAACAAJ&hl=&source=gbs_api
註釋Discusses the ecological problems of land, air, and water pollution in the world today. Includes projects that illustrate these problems and possible solutions to them.