Gregerman, A. S. (2013). The necessity of strangers: The intriguing truth about insight, innovation, and success. Jossey-Bass.
Chicago-čujuhus (17. p.)Gregerman, Alan S. The Necessity of Strangers: The Intriguing Truth About Insight, Innovation, and Success. San Francisco: Jossey-Bass, 2013.
MLA-čujuhus (9. p.)Gregerman, Alan S. The Necessity of Strangers: The Intriguing Truth About Insight, Innovation, and Success. Jossey-Bass, 2013.
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