(2006). Decision making 5 steps to better results. Havard Business School Press.
Chicago-viite (17. p.)Decision Making 5 Steps to Better Results. Havard Business School Press, 2006.
MLA-viite (8. p.)Decision Making 5 Steps to Better Results. Havard Business School Press, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.