APA-referens (7:e uppl.)

Gonda,Cyrus M. Where is my ketchup: How to give & receive exceotional customer service. Embassy Book.

Chicago-referens (17:e uppl.)

Gonda,Cyrus M. Where Is My Ketchup: How to Give & Receive Exceotional Customer Service. Mumbai: Embassy Book.

MLA-referens (9:e uppl.)

Gonda,Cyrus M. Where Is My Ketchup: How to Give & Receive Exceotional Customer Service. Embassy Book.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.