DP - MPI Library TY - JOUR T1 - Cross-Cultural Studies UR - https://www.jstor.org/stable/1126403 UR - http://dx.doi.org/10.2307/1126403 T2 - Child development SP - Vol. 31, No. 1 (1960), p. 227-228 CY - Malden PY - 1960 ER -