Powell, Ray, <br/><br/>
AQA a-level economics / 
Ray Powell, James Powell. 
 - Fourth edition. 
 - 1 online resource (626 pages) 
<br/><br/><label>ISBN: </label>9781510451957 9781510451889 (Proquest Ebook Central) 
<br/><br/><label>Source: </label>5854104  Proquest Ebook Central 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics--Problems, exercises, etc.