Hoffer, E., The True Believer (1951; New York: HarperCollins e-books, 2010; Kindle edn), 10.
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Drucker, P. F., Landmarks of Tomorrow (Oxford: Heinemann, 1996), 50 – 54.
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См. примечание 2.
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Horowitz, B., The Hard Thing About Hard Things: Building a Business When There are No Easy Answers (New York: HarperCollins, 2014; Kindle edn), ch. 4, ‘Lead Bullets’.
