Zaide, Gregorio F. , World history l / Gregorio F. Zaide and Sonia M. Zaide. - Fifth edition. - Quezon City: All Nations Publishing Co. , Inc. , 2002. - 460 pages : black and white illustrations, pictures ; 25 cm. includes bibliographical references and index. English ISBN: 9716421540 Subjects--Topical Terms: World history. Dewey Class. No.: 909 / Z1