1. The ecology of self‐determination;Abery,1996
2. Parenting Stress Index;Abidin,1990
3. The influence of Down's syndrome on sibling interaction;Abramovitch;Journal of Child Psychology and Psychiatry and Allied Disciplines,1987
4. Manual for the Child Behavior Checklist/4–18 and 1991 profile;Achenbach,1991
5. Kinship in an urban setting;Adams,1968