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 National Museum of Kenya. Education Section,Teacher's guide to early prehistory of East Africa : with special emphasis on Olduvai Gorge and Olorgesailie,,"Produced by the Education Section, National Museums of Kenya",,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282272620918144