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Polar Regions

William Nigel Bonner

出版	Wayland, 1995
URL	http://books.google.com.hk/books?id=6_nWzgEACAAJ&hl=&source=gbs_api

註釋

Examines the unique habitat provided by the polar regions, looking at the different communities of plants, animals and people which they support, and threats to their ecological balance. Suggested level: intermediate, junior secondary.