BATRA PRAMOD. (1999). SIMPLE WAYS TO MANAGE YORU SERVICE CUSTOMERS. THINK INCORPORTED.
Cita Chicago (17th ed.)BATRA PRAMOD. SIMPLE WAYS TO MANAGE YORU SERVICE CUSTOMERS. NEW DELHI: THINK INCORPORTED, 1999.
Cita MLA (9th ed.)BATRA PRAMOD. SIMPLE WAYS TO MANAGE YORU SERVICE CUSTOMERS. THINK INCORPORTED, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.