Krass, P. (2007). Ignorance, confidence, and filthy rich friends: The business adventures of Mark Twain, chronic speculator and entrepreneur. John Wiley & Sons.
শিকাগো স্টাইলে সাইটেশনKrass, Peter. Ignorance, Confidence, and Filthy Rich Friends: The Business Adventures of Mark Twain, Chronic Speculator and Entrepreneur. John Wiley & Sons, 2007.
এমএলএ সাইটেশনKrass, Peter. Ignorance, Confidence, and Filthy Rich Friends: The Business Adventures of Mark Twain, Chronic Speculator and Entrepreneur. John Wiley & Sons, 2007.
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