Lua APA (7ú heag.)
Ries, A., & Trout, J. (2001). Positioning: The battle for your mind (20th anniversary ed.). McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)
Ries, Al, agus Jack Trout. Positioning: The Battle for Your Mind. 20th anniversary ed. New York: McGraw-Hill, 2001.
Lua MLA (9ú heag.)
Ries, Al, agus Jack Trout. Positioning: The Battle for Your Mind. 20th anniversary ed. McGraw-Hill, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.