22. References: Mental Retardation Genetic Causes of Mental Retardation http://specialed.freeyellow.com/YAdaptUse.html http://www.youtube.com/watch?v=ZMJAgdMBPsg AT and Mental Retardation www.sc.edu/scatp/mr.htm Mental Retardation http://www.healthatoz.com/healthatoz/Atoz/common/standard/transform.jsp?requesRI=/healthatoz/Atoz/ency/mental_retardation.jsp Introduction to Special Education - Making A Difference - Sixth Edition Deborah Deutsch Smith