Παραπομπή σε μορφή APA (7η εκδ.)

Reichheld, F. F., & Teal, T. (1996). The loyalty effect: The hidden force behind growth, profits, and lasting value. Harvard Business School Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Reichheld, Frederick F., και Thomas Teal. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Boston, Mass: Harvard Business School Press, 1996.

Παραπομπή σε μορφή MLA (9th εκδ.)

Reichheld, Frederick F., και Thomas Teal. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Harvard Business School Press, 1996.