Economics :  principles and applications / 
Achille C. Costales ... [et al.]. 
 - Quezon City :  JMC Press Inc,  c2000. 
 - 322p. ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9711110679 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics.