APA-čujuhus (7. p.)
Port, M., & Marshall, E. (2008). The contrarian effect: Why it pays (big) to take typical sales advice and do the opposite. John Wiley & Sons.
Chicago-čujuhus (17. p.)
Port, Michael, juo Elizabeth Marshall. The Contrarian Effect: Why It Pays (big) to Take Typical Sales Advice and Do the Opposite. Hoboken, N.J.: John Wiley & Sons, 2008.
MLA-čujuhus (9. p.)
Port, Michael, juo Elizabeth Marshall. The Contrarian Effect: Why It Pays (big) to Take Typical Sales Advice and Do the Opposite. John Wiley & Sons, 2008.
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