?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=KD&rft.au=Hudson%2C+KD&rft.aulast=Hudson&rft.atitle=Thinking+inside+the+box%3A+Spatial+frames+of+reference+for+drawing+in+Williams+syndrome+and+typical+development&rft.title=Research+in+Developmental+Disabilities&rft.volume=68&rft.pages=66-77&rft.date=1+September+2017&rft.issn=0891-4222&rft.genre=article