Cita APA (7a ed.)

Griffin, J. (1997). Customer loyalty: : how to earn it, how to keep it. Jossey-Bass.

Cita Chicago Style (17a ed.)

Griffin, Jill. Customer Loyalty: : How to Earn It, How to Keep It. San Francisco: Jossey-Bass, 1997.

Cita MLA (9a ed.)

Griffin, Jill. Customer Loyalty: : How to Earn It, How to Keep It. Jossey-Bass, 1997.