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Robert Steinwachs
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Super Brain Bafflers
Robert Steinwachs · Sterling
96 sayfa · 2008
Puzzles / Logic puzzles / Word games / Riddles / Puzzles, juvenile literature
Brain Teasers (pocket puzzlers)
Martin Gardner, Robert Steinwachs, George J. Summers, Edward J. Harshman · Sterling Publishing Co.
96 sayfa · 1999
Children's questions and answers / Questions and answers / Puzzles