Lovelock, C. H., & Wirtz, J. (2011). Services marketing: People, technology, strategy (7a. ed.). Pearson Education.
Chicago-viite (17. p.)Lovelock, Christopher H., ja Jochen Wirtz. Services Marketing: People, Technology, Strategy. 7a. ed. Upper Saddle River: Pearson Education, 2011.
MLA-viite (9. p.)Lovelock, Christopher H., ja Jochen Wirtz. Services Marketing: People, Technology, Strategy. 7a. ed. Pearson Education, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.