Marsh, L.G. <br/><br/>
Children Explore Mathematics 

 - 3rd Ed. 
 - London:  A & C Black London,  1969. 
 - 160p.;  ill.  19cm 
<br/><br/><label>ISBN: </label>713610492 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510.7  / MAR