APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

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