Smith, J. (2000). Successful customer retention in a week. Hodder & Stoughton.
Chicago (17e ed.) BronvermeldingSmith, Jane. Successful Customer Retention in a Week. London: Hodder & Stoughton, 2000.
MLA (8e ed.) BronvermeldingSmith, Jane. Successful Customer Retention in a Week. Hodder & Stoughton, 2000.
Let op: Deze citaties zijn niet altijd 100% accuraat.