数学/raymond smullyanについて、ここに記述してください。
What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles (Dover Recreational Math)
https://www.amazon.co.jp/gp/product/0486481980/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
数学/raymond smullyanについて、ここに記述してください。
What Is the Name of This Book?: The Riddle of Dracula and Other Logical Puzzles (Dover Recreational Math)
https://www.amazon.co.jp/gp/product/0486481980/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1