Cita APA (7th ed.)

Reichheld, F. F. (1996). The loyalty effect: The hidden force behind growth, profits, and lasting value. Bain.

Cita Chicago (17th ed.)

Reichheld, Frederick F. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Boston: Bain, 1996.

Cita MLA (9th ed.)

Reichheld, Frederick F. The Loyalty Effect: The Hidden Force Behind Growth, Profits, and Lasting Value. Bain, 1996.