Cita APA (7a ed.)

Duncan, D., Duncan, T., Metzger, J., & Grove, C. (2019). 10 Golden Rules Of Customer Service. Gildan Audio.

Cita Chicago Style (17a ed.)

Duncan, Deb, Todd Duncan, Janet Metzger, y Christopher Grove. 10 Golden Rules Of Customer Service. Gildan Audio, 2019.

Cita MLA (9a ed.)

Duncan, Deb, et al. 10 Golden Rules Of Customer Service. Gildan Audio, 2019.