"Kankyōmondai." . . "環境問題" . "Medi ambient Llibres per a infants." . . "Llibres per a infants." . . . . . "ビッグ・グリーン・ブック" . "Juvenile works" . . . . "Ian & Fred's big green book"@ja . . . "Ianand Fred's big green book"@en . . . . . "Die Erde soll weiterleben!" . . . . . . . . . . "El gran libro verde"@es . "El gran libro verde" . . . . . . "O meu primeiro livro de ambiente" . . . . . . "Examines the interrelationship between the Earth's ecosystems and the destruction of this balance by humans, how this is endangering life on this planet and what individuals can do about this."@en . . . "Maapallo on meidän"@fi . . "Ian and Fred's Big Green Book"@en . . "Ian and Fred's Big Green Book" . . . . "Die Erde soll weiterleben" . . . "Ian & Fred's big green book" . "El Gran libro verde" . . . . . . "Biggu gurīn bukku"@ja . . . . "Medio ambiente Protección Libros infantiles." . . "Umweltschutz." . . "Ecologia Llibres per a infants." . . "Protecció de la natura Llibres per a infants." . . "Environment." . . "luonnonsuojelu." . . "ympäristönsuojelu." . . . .