Cita APA (7th ed.)

Shah Krupa. Retail Loyalty Programs. MBA CORE;2005.

Cita Chicago (17th ed.)

Shah Krupa. Retail Loyalty Programs. : MBA CORE;2005.

Cita MLA (9th ed.)

Shah Krupa. Retail Loyalty Programs. MBA CORE;2005.

Atenció: Aquestes cites poden no estar 100% correctes.