Single subject research :  applications in educational settings / 

 - Third edition 
, 
 - Boston :  Cengage,  2019. 
 - xii, 318 pages : colored illustrations ; 27cm xii, 318 pages : colored illustrations ; 27cm 
<br/><br/><label>ISBN: </label>9781337559904 
<br/><br/><label>Dewey Class. No.: </label>REF 150.72 R39