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
"Clements, Douglas H. and Sarama, Julie",Learning and teaching early math : the learning trajectories approach,,Routledge,2009,Studies in mathematical thinking and learning,,9780415995924,,https://cir.nii.ac.jp/crid/1130282270608545664