Nepomuceno Orbeta, Ramon-- <br/><br/>Zeus millenium book 1:  Scientists&inventors/ Nepomuceno Orbeta, Ramon--  -- Philippines:  Zeus Publishing  c2002 <br/>104 p.:  ill.;  21 cm. <br/><br/><label>ISBN: </label>9718855092 <br/><br/><label>Dewey Class. No.: </label>Elem 550.9 Z59 2002