Cita APA (7th ed.)

CUNNINGHAM M J. (2002). CUSTOMER RELATIONSHIP MANAGEMENT. CAPSTONE.

Cita Chicago (17th ed.)

CUNNINGHAM M J. CUSTOMER RELATIONSHIP MANAGEMENT. U K: CAPSTONE, 2002.

Cita MLA (9th ed.)

CUNNINGHAM M J. CUSTOMER RELATIONSHIP MANAGEMENT. CAPSTONE, 2002.