Wirtz, J., & Lovelock Christopher Chatterjee Jayanta Das Gopal. (2019). Essentials of Services Marketing (3rd.). Pearson.
Chicago-čujuhus (17. p.)Wirtz, Jochen, juo Lovelock Christopher Chatterjee Jayanta Das Gopal. Essentials of Services Marketing. 3rd. Noida: Pearson, 2019.
MLA-čujuhus (9. p.)Wirtz, Jochen, juo Lovelock Christopher Chatterjee Jayanta Das Gopal. Essentials of Services Marketing. 3rd. Pearson, 2019.
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