Παραπομπή σε μορφή APA (7η εκδ.)

DiFillippo, S. (2013). It's all about the guest: Exceeding expectations in business and in life, the Davio's way. Lyons Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

DiFillippo, Steve. It's All About the Guest: Exceeding Expectations in Business and in Life, the Davio's Way. Guilford, Connecticut: Lyons Press, 2013.

Παραπομπή σε μορφή MLA (8th εκδ.)

DiFillippo, Steve. It's All About the Guest: Exceeding Expectations in Business and in Life, the Davio's Way. Lyons Press, 2013.