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Rios

Andrew Haslam

出版	Scipione, 2002
ISBN	85262358509788526235854
URL	http://books.google.com.hk/books?id=aSecAgAACAAJ&hl=&source=gbs_api

註釋

Describes the geography of rivers including their power to erode and form deltas and the formation of waterfalls, rapids, and canyons. Includes experiments and other activities.