Lua APA (7ú heag.)

Ries Al. (2017). Positioning: The Battle For Your Mind (20.). McGraw Hill Education.

Lua i Stíl Chicago (17ú heag.)

Ries Al. Positioning: The Battle For Your Mind. 20. Chennai: McGraw Hill Education, 2017.

Lua MLA (9ú heag.)

Ries Al. Positioning: The Battle For Your Mind. 20. McGraw Hill Education, 2017.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.