BARWISE PATRICK. (2004). SIMPLY BETTER: WINNING AND KEEPING CUSTOMERS ? MATTERS MOST. HARPER COLLINS PUBLISHERS.
Chicago (17e ed.) BronvermeldingBARWISE PATRICK. SIMPLY BETTER: WINNING AND KEEPING CUSTOMERS ? MATTERS MOST. BOSTON: HARPER COLLINS PUBLISHERS, 2004.
MLA (9e ed.) BronvermeldingBARWISE PATRICK. SIMPLY BETTER: WINNING AND KEEPING CUSTOMERS ? MATTERS MOST. HARPER COLLINS PUBLISHERS, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.