Zeithaml, V. A. B. (2013). Services Marketing (6th.). McGraw Hill.
Čikaški stil citiranja (17. izdanje)Zeithaml, Valarie A; Bitner. Services Marketing. 6th. New Delhi: McGraw Hill, 2013.
MLA način citiranja (9. izdanje)Zeithaml, Valarie A; Bitner. Services Marketing. 6th. McGraw Hill, 2013.
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