Realuyo, Zenaida M. <br/><br/>Basic concepts in Earth Science  / Zenaida M. Realuyo and Isabelina del Pan Ilarde.--  -- Rev.ed  -- Manila:  Goodwill Trading,  1987. <br/>xvi, 306 p. :  ill. ;  26 cm. <br/><br/> Includes bibliographical references and index. <br/><br/><label>Subjects--Topical Terms: </label><br/>Earth sciences-Study and teaching (Higher).<br/><br/><label>Dewey Class. No.: </label>Fil 550 R229 1987