著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Ngana, J.",Estimation of annual floods with limited hydrologic data : the case of Mbeya/Rukwa catchments,,"Bureau of Resource Assessment and Land Use Planning, University of Dar es Salaam",1978,Research report,,,,https://cir.nii.ac.jp/crid/1130000797569352704