TY - BOOK AU - Stigler, James W. AU - Lee, Shin-Ying AU - Stevenson, Harold William TI - Mathematical knowledge of Japanese, Chinese, and American elementary school children PB - National Council of Teachers of Mathematics PY - 1990 EP - iv, 79 p. UR - https://ci.nii.ac.jp/ncid/BA12853955 SN - 0873532945 ER -