De Leon, Hector S. <br/><br/>
Textbook on the philippine constitution / 
by Hector S. de Leon. 
 - Manila :  Rex Book Store,  c1991. 
 - xiv, 586 pages ;  22 cm. 
<br/><br/><label>ISBN: </label>971230339X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Constitution--Philippines.