Citação norma APA

 Krass, P. (2007).  Ignorance, confidence, and filthy rich friends: The business adventures of Mark Twain, chronic speculator and entrepreneur.  John Wiley & Sons.

Citação norma Chicago

 Krass, Peter.  Ignorance, Confidence, and Filthy Rich Friends: The Business Adventures of Mark Twain, Chronic Speculator and Entrepreneur.  John Wiley & Sons, 2007.

Citação norma MLA

 Krass, Peter.  Ignorance, Confidence, and Filthy Rich Friends: The Business Adventures of Mark Twain, Chronic Speculator and Entrepreneur.  John Wiley & Sons, 2007.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.