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 Unesco,Status and trends of research in hydrology 1965-74 = Bilan et tendances de la recherche en hydrologie 1965-74,,Unesco,1972,Studies and reports in hydrology,,,,https://cir.nii.ac.jp/crid/1130000795323029760