Hagerstrand, T <br/><br/>
Identification of progress in learning 

 - London  Cambridge University Press  1985 
 - xii,204  Hb 
<br/><br/><label>ISBN: </label>0-521-30087 8 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>001