Guzman, Ruth S. Environmental education for sustainable development / authors: Ruth S. Guzman and Roger Z. Guzman; consultant editors: Amelia Dulce D. Supertran and Lilia M. Rabago. - Quezon City : Wisdom Advocates Publishing, c2000. - vii, 296p. : photos., figs Includes references, glossary and index ISBN: 971-92240-0-2 Subjects--Topical Terms: Environmental education--PhilippinesSustainable development--Philippines