登入選單

返回Google圖書搜尋

Ecology and Pollution/land

Martin J. Gutnik

出版	Childrens Press, 1973
主題	Juvenile Nonfiction / Science & Nature / Environmental Conservation & ProtectionNature / Environmental Conservation & ProtectionTechnology & Engineering / Environmental / General
ISBN	05160052359780516005232
URL	http://books.google.com.hk/books?id=25ZcKwCh2AMC&hl=&source=gbs_api

註釋

Instructions for experiments illustrating the characteristics of a land ecosystem, land pollution, and how waste materials can be used to benefit the land.