Cita APA (7a ed.)

Furlong, C. B. (1993). Marketing for keeps: Building your business by retaining your customers. John Wiley and Sons.

Cita Chicago Style (17a ed.)

Furlong, Carla B. Marketing for Keeps: Building Your Business by Retaining Your Customers. John Wiley and Sons, 1993.

Cita MLA (8a ed.)

Furlong, Carla B. Marketing for Keeps: Building Your Business by Retaining Your Customers. John Wiley and Sons, 1993.