APA-ийн эшлэл(7 дахь хэвлэлт)

Collier, M. (2011). The ultimate online customer service guide: How to connect with your customers to sell more! John Wiley & Sons.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Collier, Marsha. The Ultimate Online Customer Service Guide: How to Connect with Your Customers to Sell More! Hoboken, N.J.: John Wiley & Sons, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Collier, Marsha. The Ultimate Online Customer Service Guide: How to Connect with Your Customers to Sell More! John Wiley & Sons, 2011.