Books listed by ISBN
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HarperCollins
> Robert J Sovchik
Robert J Sovchik
title
ISBN-13
(ISBN-10)
year of publication
Teaching mathematics to children
978-O-O6-O46385-4
(O-O6-O46385-6)
1988
J. S.
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R.J.
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R. S.
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Robert J.
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Robert S.
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Robert Sovchik
Robert J. Sparks