International Handbook of Autism and Pervasive Developmental Disorders Audrey Thurm, Somer Bishop, Stacy Shumway. Developmental Issues and Milestones. International Handbook of Autism and Pervasive Developmental Disorders. 2011 Jan 1; 159-173. 2011 https://researcherprofiles.org/profile/79296543 Audrey Thurm, Somer Bishop, Stacy Shumway