SCOTT DRU. (1991). CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION.
Chicago (17e ed.) BronvermeldingSCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CALIFORNIA: CRISP PUBLICATION, 1991.
MLA (9e ed.) BronvermeldingSCOTT DRU. CUSTOMER SATISFACTION: THE OTHER HALF OF YOUR JOB. CRISP PUBLICATION, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.