Campbell Townsend and  David Hamilton,  Evolved Disease Avoidance Mechanisms, Generalized Prejudice, Modern Attitudes towards Individuals with Intellectual Disability.   journal   = {International Journal of Psychological and Behavioral Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 1120 - 1123
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/11706.