Economy, P. (2004). Customer service secrets. New Delhi: Tata McGraw-Hill Publishing Company Ltd.
Stile di citazione ChicagoEconomy, Peter. Customer Service Secrets. New Delhi: Tata McGraw-Hill Publishing Company Ltd, 2004.
Citazione MLAEconomy, Peter. Customer Service Secrets. New Delhi: Tata McGraw-Hill Publishing Company Ltd, 2004.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.