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Author

Daniel J. Spero

6 books found

Cover of Electricity

Electricity

Daniel J. Spero · First published 1994

Cover of Geology (Primary Science Mini-Unit)

Geology (Primary Science Mini-Unit)

Daniel J. Spero · First published 1994

$Cover of Light Reflection & Refraction$

Light Reflection & Refraction

Daniel J. Spero · First published 1994

Cover of Magnetism

Magnetism

Daniel J. Spero · First published 1994

Cover of Matter and Energy (Science Mini-Unit Intermediate Series)

Matter and Energy (Science Mini-Unit Intermediate Series)

Daniel J. Spero · First published 1994

Cover of Sound

Sound

Daniel J. Spero · First published 1994