Gaya APA

Pomeranz, R., Azevedo, A, D. (2008). Customer obsession : how to acquire, retain, and grow customers in the new age of relationship . : McGraw-Hill.

Gaya MLA

Pomeranz, Ricardo., Azevedo, Abaete, De. "Customer obsession : how to acquire, retain, and grow customers in the new age of relationship". : McGraw-Hill, 2008. Textbook.