APA-viite (7. p.)
Keen, J. M. (2011). Making technology investments profitable: ROI road map from business case to value realization (2nd ed.). Wiley.
Chicago-viite (17. p.)
Keen, Jack M. Making Technology Investments Profitable: ROI Road Map from Business Case to Value Realization. 2nd ed. Hoboken, N.J.: Wiley, 2011.
MLA-viite (9. p.)
Keen, Jack M. Making Technology Investments Profitable: ROI Road Map from Business Case to Value Realization. 2nd ed. Wiley, 2011.
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