Wrinklies Logic Puzzles: Brainteasers for Golden Oldies
by Prion
ISBN 13: 9781911610106
Format: Hardcover (192 pages) Publisher: Welbeck Publishing Published: 03 May 2018
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Wrinklies Plethora of Puzzles: Brilliant brainteasers for mature minds
ISBN 13: 9781911610250
Format: Hardcover (192 pages) Publisher: Welbeck Publishing Published: 11 Jul 2019