"Mathematical recreations Fiction." . . "JUVENILE FICTION / General" . . "Historical" . . "Mathematical recreations Juvenile literature." . . "Additions Romans, nouvelles, etc. pour la jeunesse." . . "Concepts" . . "Résolution de problème Romans, nouvelles, etc. pour la jeunesse." . . "Number games Fiction." . . "Nombres Littérature pour la jeunesse." . . "Readers / Intermediate" . . . . . . "Ouvrages pour la jeunesse" . . . . . . . "Shows how Benjamin Franklin, inventor, writer and scientist, created a puzzle called the magic square to keep from being bored while serving as clerk for the Pennsylvania Assembly. Includes step-by-step instructions for creating your own magic squares." . . . "Ben Franklin and the magic squares" . "Ben Franklin and the magic squares"@en . . . . "Ben Franklin and the magic squares : a math reader"@en . "Ben Franklin and the magic squares : a math reader" . "Fiction"@en . "Fiction" . "Shows how Benjamin Franklin, inventor, writer and scientist, created a puzzle called the magic square to keep from being bored while serving as clerk for the Pennsylvania Assembly. Includes step-by-step instructions for creating your own magic squares."@en . . "Shows how Benjamin Franklin, inventor, writer and scientist, created a puzzle called the magic square to keep from being bored while serving as clerk for the Pennsylvania Assembly. Includes step-by-step instructions for creating your own magic squares." . . . . . . . . . . "Shows how Benjamin Franklin, inventor, writer, and scientist, created a puzzle called the magic square to keep from being bored while serving as clerk for the Pennsyvania Assembly."@en . . "Ben Franklin and the Magic Squares"@en . "Ben Franklin and the Magic Squares" . "Juvenile works"@en . "Juvenile works" . . . "Electronic books"@en . "Electronic books" . . . . . "Nombres Jeux Romans, nouvelles, etc. pour la jeunesse." . .