TOWNSEND, C. B. (2002). WORLD'S MOST AMAZING PUZZLES (1st.). ORIENT PAPERBACKS.
Chicagoスタイル(17版)引用形式TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. NEW DELHI: ORIENT PAPERBACKS, 2002.
MLA(9版)引用形式TOWNSEND, CHARLES. BARRY. WORLD'S MOST AMAZING PUZZLES. 1st. ORIENT PAPERBACKS, 2002.
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