Dyfyniad APA

Katsigris, C., & Thomas, C. (2007). The bar and beverage book (4th ed.). Wiley.

Dyfyniad Arddull Chicago

Katsigris, Costas, and Chris Thomas. The Bar and Beverage Book. 4th ed. New York: Wiley, 2007.

Dyfyniad MLA

Katsigris, Costas, and Chris Thomas. The Bar and Beverage Book. 4th ed. Wiley, 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.