Kahney, L. (2019). Tim Cook: The genius who took apple to the next level. Portfolio/Penguin.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKahney, Leander. Tim Cook: The Genius Who Took Apple to the Next Level. London: Portfolio/Penguin, 2019.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKahney, Leander. Tim Cook: The Genius Who Took Apple to the Next Level. Portfolio/Penguin, 2019.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.