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Ecological Changes in the Usangu Plains and Their Implications on the Down Stream Flow of the Great Ruaha River in Tanzania

I. S. KikulaSusan CharnleyPius Z. Yanda

出版	Institute of Resource Assessment, University of Dar es Salaam, 1996
ISBN	99766904529789976690453
URL	http://books.google.com.hk/books?id=eiQIAQAAMAAJ&hl=&source=gbs_api