The Penguin book of curious and interesting puzzles /
Wells, David.
The Penguin book of curious and interesting puzzles / by David Wells. - 1st ed. - London : Penguin Books, 1992. - 382 p. : ill ; 20 cm.
Includes bibliographical references and index.
Mathematical recreations.
The Penguin book of curious and interesting puzzles / by David Wells. - 1st ed. - London : Penguin Books, 1992. - 382 p. : ill ; 20 cm.
Includes bibliographical references and index.
Mathematical recreations.