Dr. Broth and Ollie's brain-boggling search for the lost luggage :

Abrams, Michael

Dr. Broth and Ollie's brain-boggling search for the lost luggage : across time and space in 80 puzzles / by Michael Abrams & Jeffrey Winters ; illustrated by Marc Rosenthal. - New York : Fireside, 2000. - 192 p.

0684870010


Mathematical recreations