Doblelli Rolf. (2013). Art of Thinking Clearly. Sceptre.
Chicagoスタイル(17版)引用形式Doblelli Rolf. Art of Thinking Clearly. UK: Sceptre, 2013.
MLA(9版)引用形式Doblelli Rolf. Art of Thinking Clearly. Sceptre, 2013.
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APA(7版)引用形式