Guzman, Ruth Marian Earth and life science / Ruth Marian Guzman, James Cesar Refran and Pamela Louise M. Tolentino. - Quezon City : Vibal Group Inc., c2016. - vi, 434p. : col. ill. ; 26cm. Includes bibliographical references and an index. ISBN: 978-971-07-3823-6 Subjects--Topical Terms: Earth ScienceLife Science Dewey Class. No.: GC 550 G993 2016 / 15062