APA (7e ed.) Bronvermelding
Bell, C. R., & Bell, B. R. Magnetic Service: Secrets for Creating Passionately Devoted Customers. Berrett-Koehler.
Chicago (17e ed.) Bronvermelding
Bell, Chip R., en Bilijack R. Bell. Magnetic Service: Secrets for Creating Passionately Devoted Customers. San Francisco, EUA: Berrett-Koehler.
MLA (9e ed.) Bronvermelding
Bell, Chip R., en Bilijack R. Bell. Magnetic Service: Secrets for Creating Passionately Devoted Customers. Berrett-Koehler.
Let op: Deze citaties zijn niet altijd 100% accuraat.