APA-viite (7. p.)
Elkington, J., Zeitz, J., & Branson, R. (2014). The breakthrough challenge: 10 ways to connect today's profit with tomorrow's bottom line. Jossey-Bass.
Chicago-viite (17. p.)
Elkington, John, Jochen Zeitz, ja Richard Branson. The Breakthrough Challenge: 10 Ways to Connect Today's Profit with Tomorrow's Bottom Line. San Francisco, California: Jossey-Bass, 2014.
MLA-viite (9. p.)
Elkington, John, et al. The Breakthrough Challenge: 10 Ways to Connect Today's Profit with Tomorrow's Bottom Line. Jossey-Bass, 2014.
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