Gates, B., & Hemingway, C. (1999). Business @ the speed of thought: Succeeding in the digital economy. Penguin.
Lua i Stíl Chicago (17ú heag.)Gates, Bill, agus Collins Hemingway. Business @ the Speed of Thought: Succeeding in the Digital Economy. London: Penguin, 1999.
Lua MLA (8ú heag.)Gates, Bill, agus Collins Hemingway. Business @ the Speed of Thought: Succeeding in the Digital Economy. Penguin, 1999.
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