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AuthorMoral Ajadó, Jordi (12)Bartolí, Marc (11)Sala, Ramon (9)Estival, Albert (8)Folch, Ramon (8)... moreSubject
método audiovisual (126)
Cataluña (21)educación ambiental (20)ecología (17)recursos naturales (14)... moreDate issue2000 - 2004 (17)1990 - 1999 (83)1983 - 1989 (26)