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
"Butzer, Karl Wilhelm and Kirchner, John A. and Omo Research Expedition",Recent history of an Ethiopian delta : the Omo River and the level of Lake Rudolf,,"University of Chicago, Dept. of Geography",1971,Research paper,,,,https://cir.nii.ac.jp/crid/1130000794920943232