APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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