Hattie John A.C <br/><br/>
Visible Learning 

 - 1st Ed. 
 - London  Routledge  2009 
 - 378p 
<br/><br/><label>ISBN: </label>415476178 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visible Learning
<br/><br/><label>LC Class. No.: </label>LB 1060 H3 2009