Personal Book 2: Impetus 2 

 - London:  Ginn and Company Ltd., 
 - 16p.;  17cm 
<br/><br/><label>ISBN: </label>0602213517 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Primary education
<br/><br/><label>Dewey Class. No.: </label>372.83  / PER