Thomas, R. L. (Richard Leighton) <br/><br/>
Using mathematics in economics 
R.L. Thomas 
 - 2d ed. 
 - Harlow  Pearson Education  1999. 
 - 34p. : p.  ill.  24cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0201360500 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Graphic methods