APA-ийн эшлэл(7 дахь хэвлэлт)

Gordman Robert. (2006). Must-Have Customer: 7 steps to winning the customer you haven't got. Truman Talley Books St.Martin Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Gordman Robert. Must-Have Customer: 7 Steps to Winning the Customer You Haven't Got. NewYork: Truman Talley Books St.Martin Press, 2006.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Gordman Robert. Must-Have Customer: 7 Steps to Winning the Customer You Haven't Got. Truman Talley Books St.Martin Press, 2006.