Barner James G. (2006). Build Your Customer Strategy: A guide to creating profitable customer relationships. Wiley /John Wiley & Sons Inc.
Lua i Stíl Chicago (17ú heag.)Barner James G. Build Your Customer Strategy: A Guide to Creating Profitable Customer Relationships. New Jersey ,Canada: Wiley /John Wiley & Sons Inc, 2006.
Lua MLA (9ú heag.)Barner James G. Build Your Customer Strategy: A Guide to Creating Profitable Customer Relationships. Wiley /John Wiley & Sons Inc, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.