APA-ийн эшлэл(7 дахь хэвлэлт)

Spector Robert. (2002). Anytime, Anywhere: How the Best Bricks-and-Clicks Businesses deliver seamless service to their customers. Perseus Publishing.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Spector Robert. Anytime, Anywhere: How the Best Bricks-and-Clicks Businesses Deliver Seamless Service to Their Customers. USA: Perseus Publishing, 2002.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Spector Robert. Anytime, Anywhere: How the Best Bricks-and-Clicks Businesses Deliver Seamless Service to Their Customers. Perseus Publishing, 2002.