TY - BOOK AU - Ritvo,Edward TI - Understanding the nature of Autism and Asperger's disorder: forty years of clinical practice and pioneering research SN - 9781843108146 PY - 2006/// CY - London PB - Jessica Kingsley KW - Autistism KW - Asperger syndrome N1 - Includes bibliographical references (p. 167) and index ER -