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Actividades de Energía Renovable con el set 9688 y LEGO Mindstorms NXT - RO-BOTICA by RO-BOTICA - Issuu
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BrickLink - Set 9688-1 : LEGO Renewable Energy Add-On Set [Educational & Dacta:Technic:Supplemental] - BrickLink Reference Catalog
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LEGO Set 9688-1 Renewable Energy Add-On Set (2010 Educational and Dacta > Technic > Supplemental) | Rebrickable - Build with LEGO
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