Egan, J. (2001). Relationship marketing: Exploring relational strategies in marketing. Financial Times/Prentice-Hall.
Chicago-referens (17:e uppl.)Egan, John. Relationship Marketing: Exploring Relational Strategies in Marketing. Harlow, Eng: Financial Times/Prentice-Hall, 2001.
MLA-referens (9:e uppl.)Egan, John. Relationship Marketing: Exploring Relational Strategies in Marketing. Financial Times/Prentice-Hall, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.