Pocket money (the essentials of money all the way from Cowrie Shells to Cyber cash) 
The Economist Books 
 - London  [publisher not identified]  2008 
 - vii, 199p. : ill.; map 
<br/><br/><label>ISBN: </label>9781861971562 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics<br/>Money
<br/><br/><label>Dewey Class. No.: </label>332.4 PRO