TOWNSEND, C. B. (2002). WORLD'S MOST AMAZING PUZZLES (1st.). ORIENT PAPERBACKS.
Cita Chicago (17th ed.)TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. NEW DELHI: ORIENT PAPERBACKS, 2002.
Cita MLA (9th ed.)TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. ORIENT PAPERBACKS, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.