1. Achenbach, T.M. (1966). The classification of children’s psychiatric symptoms: a factor analytic study. Psychological Monographs, 80 (whole no. 615).
2. Achenbach, T.M. (1974). Developmental psychopathology (1st edition). New York: Wiley.
3. Ackerson, L. (1942). Children’s behavior problems (vol. 2). Chicago: University of Chicago Press.
4. Aichhorn, A. (1925/1967). Verwaarloosde jeugd. Utrecht: Bijleveld.
5. Aichhorn, A. (1961). Verwaarlozing en heropvoeding. Utrecht: Bijleveld.