Student's manual on the constitution  / 
De Leon, Hector S.; De Leon Jr., Hector M. 
 - 6th ed. 
 - Manila :  Rex Book Store,  2010. 
 - xxxv,364p.; 22cm. 
<br/><br/><label>ISBN: </label>9789712346279 
<br/><br/><label>Dewey Class. No.: </label>Fil 342 D278 2010