Allen, P. (2011). Idea Man: A Memoir by the Co-founder of Microsoft. Portfolio Penguin.
Chicago-viite (17. p.)Allen, Paul. Idea Man: A Memoir by the Co-founder of Microsoft. London: Portfolio Penguin, 2011.
MLA-viite (9. p.)Allen, Paul. Idea Man: A Memoir by the Co-founder of Microsoft. Portfolio Penguin, 2011.
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