Gladwell, M. (2013). David and Goliath: Underdogs misfits and the art of battling giants. Penguin.
Chicago-čujuhus (17. p.)Gladwell, Malcolm. David and Goliath: Underdogs Misfits and the Art of Battling Giants. London: Penguin, 2013.
MLA-čujuhus (9. p.)Gladwell, Malcolm. David and Goliath: Underdogs Misfits and the Art of Battling Giants. Penguin, 2013.
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