Παραπομπή σε μορφή APA (7η εκδ.)

Craven, R. (2002). Customer is king: How to exceed their expectations. Virgin Books.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Craven, Robert. Customer Is King: How to Exceed Their Expectations. London: Virgin Books, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Craven, Robert. Customer Is King: How to Exceed Their Expectations. Virgin Books, 2002.