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Janice VanCleave's A+ Science Fair Projects (JANICE VAN CLEAVE'S A+ PROJECTS IN)
New €17.30
You save €15.31 (88%)
Book€1.99
You save €15.31 (88%)
New €17.30€1.99

Making and Enjoying Telescopes: 6 Complete Projects and a Stargazer's Guide
Book€3.99
€3.99