Schultz, M., Doerr, J. E., & Rackham, N. (2014). Insight selling: Surprising research on what sales winners do differently. Wiley.
Citace podle Chicago (17th ed.)Schultz, Mike, John E. Doerr, a Neil Rackham. Insight Selling: Surprising Research on What Sales Winners Do Differently. Hoboken, New Jersey: Wiley, 2014.
Citace podle MLA (9th ed.)Schultz, Mike, et al. Insight Selling: Surprising Research on What Sales Winners Do Differently. Wiley, 2014.
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