Berkm#ller, Klaus. Environmental education about the rain forest - Rev. ed. - Gland, Switzerland : International Union for Conservation of Nature and Natural Resources, 1992 - 210 p. LCCN: 42529 Subjects--Topical Terms: Bosques--Preservación.Bosques--Trópicos. Dewey Class. No.: 634.90913 / B4 1992