Cita APA (7a ed.)

Mackay, H., & Artz, N. (1997). 301 great customer service ideas from America's most innovative small companies. Goldhirsh Group.

Cita Chicago Style (17a ed.)

Mackay, Harvey, y Nancy Artz. 301 Great Customer Service Ideas from America's Most Innovative Small Companies. Boston: Goldhirsh Group, 1997.

Cita MLA (9a ed.)

Mackay, Harvey, y Nancy Artz. 301 Great Customer Service Ideas from America's Most Innovative Small Companies. Goldhirsh Group, 1997.