Boer, A P <br/><br/>
Application of a simple recording system to the analysis of free-play behavior in autistic children.  [electronic resource] 

 -  Journal of applied behavior analysis  1968 
 - 335-40 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0021-8855 
<br/><br/><label>Standard No.: </label>10.1901/jaba.1968.1-335  doi