Robert Steinwachs

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Books by Robert Steinwachs (50 max)

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Pocket Puzzlers: Brain Teasers

1999

Martin Gardner, Robert Steinwachs, George J. Summers, Edward J. Harshman

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Brain bafflers

1993

Robert Steinwachs

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Super Brain Bafflers

2008

Robert Steinwachs

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Énigmes et devinettes

2012

Robert Steinwachs