Townsend, Charles Barry.

World's hardest puzzles / by Charles Barry Townsend. - New York : Sterling Pub. Co., 1992. - p. cm.

Includes index.

ISBN: 080698516X :

LCCN: 91041544

Subjects--Topical Terms:
Puzzles.

Subjects--Index Terms: Puzzles. World's Hardest Puzzles.

LC Class. No.: GV1493 / .T686 1992

Dewey Class. No.: 793.73