Holiday, R. (2014). Obstacle is the way: The ancient art of turning adversity to advantage (NA.). Profile Books.
Chicago-viite (17. p.)Holiday, Ryan. Obstacle Is the Way: The Ancient Art of Turning Adversity to Advantage. NA. London: Profile Books, 2014.
MLA-viite (9. p.)Holiday, Ryan. Obstacle Is the Way: The Ancient Art of Turning Adversity to Advantage. NA. Profile Books, 2014.
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