Havens, J. (2015). Customer Service Video Series (1st edition.). Pearson.
Cita Chicago Style (17a ed.)Havens, Jeff. Customer Service Video Series. 1st edition. Pearson, 2015.
Cita MLA (9a ed.)Havens, Jeff. Customer Service Video Series. 1st edition. Pearson, 2015.
Precaución: Estas citas no son 100% exactas.
