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Riparian Zone Characteristics, Fluvial Attributes and Watershed Land-use, and the Utility of River Otter (Lutra Lutra) as Indicator Species, in Rural Aragón, Spain

Moraia Grau López

出版	University of Victoria, 2004
URL	http://books.google.com.hk/books?id=Z49_0AEACAAJ&hl=&source=gbs_api