Ratio, fractions, decimals and percentages  
illustrations by Jeff Edwards, Chris Evans, David Parkins, Martina Selway, Peter and Janet Simmonet 
 - Cambridge:  Cambridge University Press,  1995. 
 - 32p.;  ill.,  cm 
<br/><br/><label>ISBN: </label>0521439116 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ratio, fractions, decimals and percentages 
<br/><br/><label>Dewey Class. No.: </label>510