Greenberg, P. (2010). CRM (Customer Relationship Management) at the Speed of Light (4th.). Tata McGraw Hill Education Private Limited.
Citação do estilo Chicago (17ª ed.)Greenberg, Paul. CRM (Customer Relationship Management) at the Speed of Light. 4th. New Delhi: Tata McGraw Hill Education Private Limited, 2010.
Citação MLA (9ª ed.)Greenberg, Paul. CRM (Customer Relationship Management) at the Speed of Light. 4th. Tata McGraw Hill Education Private Limited, 2010.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.