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 International Conference on Public Education,"Introduction to natural science in primary schools from information supplied by the Ministers of Education, Afghanistan, Argentina, Australia ... : XIIth International Conference on Public Education convened by Unesco and the I.B.E.",,Unesco,1949,Publication,,,,https://cir.nii.ac.jp/crid/1130000798139283456