Para salvar la tierra : el desafío ecológico

By: Ander-Egg, Ezequiel, 06/04/1930Material type: TextTextLanguage: Spanish Series: Guía para la educación ecológica ; 1Publication details: Madrid : Lumen, 1995Edition: 8a ed. ampl. y corrDescription: 240 páginas : il., fotISBN: 950724395XSubject(s): Ecologia | Degradacion | Contaminacion Ambiental
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