Jacobson, J M <br/><br/>
Switching requirements in a Head Start classroom.  [electronic resource] 

 -  Journal of applied behavior analysis  1969 
 - 43-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0021-8855 
<br/><br/><label>Standard No.: </label>10.1901/jaba.1969.2-43  doi