Harry Ogden <br/><br/>
Workshop numeracy 

 - London  Pitman Publishing  1984 
 - ix, 141p.;  pbk 
<br/><br/><label>ISBN: </label>0273018981 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>LC Class. No.: </label>TA 335. O5 1984