Summers,George J. (2005). Puzzles and teasers. Jaico Publishing House.
シカゴスタイル引用形Summers,George J. Puzzles and Teasers. Mumbai: Jaico Publishing House, 2005.
MLA引用形式Summers,George J. Puzzles and Teasers. Jaico Publishing House, 2005.
警告: この引用は必ずしも正確ではありません.