Cita APA (7a ed.)

Reichheld, F. F. (2001). Loyalty rules?: How today's leaders build lasting relationships. Harvard Business School.

Cita Chicago Style (17a ed.)

Reichheld, Frederick F. Loyalty Rules?: How Today's Leaders Build Lasting Relationships. Boston, Massachusetts: Harvard Business School, 2001.

Cita MLA (9a ed.)

Reichheld, Frederick F. Loyalty Rules?: How Today's Leaders Build Lasting Relationships. Harvard Business School, 2001.