Gonda,Cyrus M. Where is my ketchup: How to give & receive exceotional customer service. Embassy Book.
Čikaški stil citiranja (17. izdanje)Gonda,Cyrus M. Where Is My Ketchup: How to Give & Receive Exceotional Customer Service. Mumbai: Embassy Book.
MLA način citiranja (9. izdanje)Gonda,Cyrus M. Where Is My Ketchup: How to Give & Receive Exceotional Customer Service. Embassy Book.
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