(1990). Treatment of mental illness and behavioral disorder in the mentally retarded: Proceedings of the International Congress, May 3 - 4, 1990, Amsterdam, The Netherlands. Logon Publ.
Chicago-Zitierstil (17. Ausg.)Treatment of Mental Illness and Behavioral Disorder in the Mentally Retarded: Proceedings of the International Congress, May 3 - 4, 1990, Amsterdam, The Netherlands. Leiden: Logon Publ, 1990.
MLA-Zitierstil (9. Ausg.)Treatment of Mental Illness and Behavioral Disorder in the Mentally Retarded: Proceedings of the International Congress, May 3 - 4, 1990, Amsterdam, The Netherlands. Logon Publ, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.