De Leon, Hector S. [and] De Leon, Hector M., Jr. Textbook on the Philippine constitution 2011 / Hector S. De Leon [and] Hector M. De Leon, Jr. - ii, 801 pages ; 23 cm. ISBN: 9789712360077 Subjects--Topical Terms: Philippines -- Constitutional law. Dewey Class. No.: 342.029 / D34t