TY - BOOK AU - Linn, Robert L. AU - Frederick Ericson TI - Quantitative methods PB - Macmillan PB - Collier Macmillan PY - 1990 T2 - Research in teaching and learning : a project of the American Educational Research Association VL - Vol. 2 EP - vii, 200 p. UR - https://ci.nii.ac.jp/ncid/BB18500864 SN - 0028970063 ER -