Wirtz,jochen, & Lovelock,christopher. (2022). services marketing: People technology strategy. world scientifix.
Čikaški stil citiranja (17. izdanje)Wirtz,jochen, i Lovelock,christopher. Services Marketing: People Technology Strategy. New jersey: world scientifix, 2022.
MLA način citiranja (9. izdanje)Wirtz,jochen, i Lovelock,christopher. Services Marketing: People Technology Strategy. world scientifix, 2022.
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