Παραπομπή σε μορφή APA (7η εκδ.)

Ellis, C. D. (2013). What it takes: Seven secrets of success from the world's greatest professional firms. John Wiley & Sons, Inc.. https://doi.org/10.1002/9781119203995

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ellis, Charles D. What It Takes: Seven Secrets of Success from the World's Greatest Professional Firms. Hoboken, New Jersey: John Wiley & Sons, Inc., 2013. https://doi.org/10.1002/9781119203995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Ellis, Charles D. What It Takes: Seven Secrets of Success from the World's Greatest Professional Firms. John Wiley & Sons, Inc., 2013. https://doi.org/10.1002/9781119203995.