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cover of Art and Craft of Problem Solving (2ND 07)

by Paul Zeitz

ISBN13: 978-0471789017
ISBN10: 0471789011

cover of Barron`s Dictionary of Mathematics Terms (3RD 09)

by Douglas Downing

ISBN13: 978-0764141393
ISBN10: 0764141392

cover of Math the Easy Way ((5TH)09)

by Anthony Prindle

ISBN13: 978-0764141324
ISBN10: 0764141325