APA (7. basım) Alıntı

Ismail, A. (1999). Catering sales and convention services. Delmar Publishers.

Chicago Style (17. basım) Atıf

Ismail, Ahmed. Catering Sales and Convention Services. Albany, NY: Delmar Publishers, 1999.

MLA (9th ed.) Atıf

Ismail, Ahmed. Catering Sales and Convention Services. Delmar Publishers, 1999.