The economics of the firm : managerial applications 
Poblador, Niceto S. 
 -  University of the Philippines Press.  1996 
 - xi, 547 pages. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71542088-5 
<br/><br/><label>Dewey Class. No.: </label>GS 331.714 P75e 1996