Arnold, Roger A. <br/><br/>
Principles of economics / 
Roger A. Arnold. 
 - 11th ed. 
 - Taguig City :  Cengage,  c2016. 
 - xxxii, 876 p. ; 26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9789814687072 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics