Kalendaryong pangkasaysayan 1521-1969  - Manila  National Historical Commission of the Philippines   - vi, 227 page;  24 cm. <br/><br/><label>ISBN: </label>9715381006 <br/><br/><label>Subjects--Topical Terms: </label><br/>Philippine Hisoey<br/><br/><label>LC Class. No.: </label>DS 655  / .K143 2011