APA-viite (7. p.)

Walker, G. (2009). Modern competitive strategy (Third edition.). McGraw-Hill/Irwin.

Chicago-viite (17. p.)

Walker, Gordon. Modern Competitive Strategy. Third edition. New York: McGraw-Hill/Irwin, 2009.

MLA-viite (9. p.)

Walker, Gordon. Modern Competitive Strategy. Third edition. McGraw-Hill/Irwin, 2009.