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A resource book of ideascience instructional devices, projects, enrichment activities
Foilsithe / Cruthaithe 1983LEABHAR -
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Low-cost educational materials how to make, how to use, how to adapt.
Foilsithe / Cruthaithe 1980LEABHAR -
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Welcome to the Thomas World of scientific apparatus and reagents.
Foilsithe / Cruthaithe 1980LEABHAR -
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Suggested activities on magnetism using an improvised current balance apparatus
Foilsithe / Cruthaithe 1978Tráchtas