Medina, Roberto G. <br/><br/>
Principles of marketing / 
Roberto G. Medina. 
 - Manila :  REX Book Store, 1997,  c1990. 
 - xvi, 197 p. : ill. 
<br/><br/> Includes bibliography and index. 
<br/><br/><label>ISBN: </label>9712307638 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Marketing