Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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