Results of The Austrian-Ceylonese Hydrobiological Mission 1970 of the 1st Zoological Institute University of Vienna (Austria) and the Department of Zoology of the University of Ceylon, Vidyalankara Campus, Kelaniya (Sri Lanka) Part XVII:The Freshwater Gastropods of Ceylon
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Results of The Austrian-Ceylonese Hydrobiological Mission 1970 of the 1st Zoological Institute University of Vienna (Austria) and the Department of Zoology of the University of Ceylon, Vidyalankara Campus, Kelaniya (Sri Lanka) Part XVII:The Freshwater Gastropods of Ceylon