Gates, B. (1999). Business: The speed of thought. Penguin Books.
Citazione stile Chigago Style (17a edizione)Gates, Bill. Business: The Speed of Thought. London: Penguin Books, 1999.
Citatione MLA (9a ed.)Gates, Bill. Business: The Speed of Thought. Penguin Books, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.