Gaya APA

Azevedo, A, D. (2008). Customer obsession : How to acquire, retain, and grow customers in the new age of relationship marketing . New York: McGraw-Hill.

Gaya MLA

Azevedo, Abaete, De. "Customer obsession : How to acquire, retain, and grow customers in the new age of relationship marketing". New York: McGraw-Hill, 2008. Text.