Kirpal Singh. (2004). Thinking hats and coloured turbans. Pearson/Prentice Hall.
Chicagoスタイル(17版)引用形式Kirpal Singh. Thinking Hats and Coloured Turbans. Singapore: Pearson/Prentice Hall, 2004.
MLA(8版)引用形式Kirpal Singh. Thinking Hats and Coloured Turbans. Pearson/Prentice Hall, 2004.
警告: この引用は必ずしも正確ではありません.