Porter, M. E. (1998). The Competitive Advantage of Nations. Palgrave.
Lua i Stíl Chicago (17ú heag.)Porter, Michael E. The Competitive Advantage of Nations. New York: Palgrave, 1998.
Lua MLA (9ú heag.)Porter, Michael E. The Competitive Advantage of Nations. Palgrave, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.