Jackson, H. K., & Frigon, N. L. (1996). Achieving the competitive edge: A practical guide to world-class competition. Wiley.
Chicago-viite (17. p.)Jackson, Harry K., ja Normand L. Frigon. Achieving the Competitive Edge: A Practical Guide to World-class Competition. New York: Wiley, 1996.
MLA-viite (9. p.)Jackson, Harry K., ja Normand L. Frigon. Achieving the Competitive Edge: A Practical Guide to World-class Competition. Wiley, 1996.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.