共 50 条
- [32] CONTINGENCY LEARNING IN 9-MONTH-OLD INFANTS WITH DOWN-SYNDROME AMERICAN JOURNAL ON MENTAL RETARDATION, 1994, 99 (01): : 74 - 84
- [38] CATEGORIZATION STUDIES OF 9-MONTH-OLD TO 15-MONTH-OLD INFANTS - EVIDENCE FOR SUPERORDINATE CATEGORIZATION INFANT BEHAVIOR & DEVELOPMENT, 1989, 12 (03): : 265 - 288