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 School Mathematics Study Group Stanford University and Survey of Recent East European Mathematical Literature,Problem solving in arithmetic and algebra,,National Council of Teachers of Mathematics,1969,Soviet studies in the psychology of learning and teaching mathematics,,,,https://cir.nii.ac.jp/crid/1130282270852150528