Lua APA (7ú heag.)
Collier, M. (2011). The ultimate online customer service guide: How to connect with your customers to sell more! John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)
Collier, Marsha. The Ultimate Online Customer Service Guide: How to Connect with Your Customers to Sell More! Hoboken, N.J.: John Wiley & Sons, 2011.
Lua MLA (9ú heag.)
Collier, Marsha. The Ultimate Online Customer Service Guide: How to Connect with Your Customers to Sell More! John Wiley & Sons, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.