Cita APA (7th ed.)
(2007). Loyalty Card Case Study (American Express, Royal Bank of Canada, CitiBank): Adapting Rewards to Cardholder Preferences. Marketline.
Cita Chicago (17th ed.)
Loyalty Card Case Study (American Express, Royal Bank of Canada, CitiBank): Adapting Rewards to Cardholder Preferences. Marketline, 2007.
Cita MLA (9th ed.)
Loyalty Card Case Study (American Express, Royal Bank of Canada, CitiBank): Adapting Rewards to Cardholder Preferences. Marketline, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.