McKean. (2010). Managing customers through ecocnomic cycles. John Wiley & Sons.
Chicago Style aipamenaMcKean. Managing Customers Through Ecocnomic Cycles. Sussex: John Wiley & Sons, 2010.
MLA aipamenaMcKean. Managing Customers Through Ecocnomic Cycles. John Wiley & Sons, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.