Mastering the principles of economics 
Guzman, Juliet S. 
 -  National Book store.  2004 
 - ix, 123 p. 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics -- Study and teaching.
<br/><br/><label>Dewey Class. No.: </label>F 330 G993 2004