Cordin,P.W. <br/><br/>
Mathematics and metric measuring measuring length 

 -   Macmillan , 
 - 47p.;  ill.  24cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>372.7  / COR