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> Giles Cohen
Giles Cohen
G. C.
ยท
G. Cohen
title
ISBN-13
(ISBN-10)
year of publication
50 Mathematical Puzzles & Problems: Green Collection, Grades 6-12
978-1-55953-498-7
(1-55953-498-2)
2001
50 Mathematical Puzzles & Problems Red Collection
978-1-55953-500-7
(1-55953-500-8)
2001
Giles Colborne