Dyfyniad APA

Dopson, L. R., & Hayes, D. K. (2011). Food and beverage cost control (5th ed.). Wiley.

Dyfyniad Arddull Chicago

Dopson, Lea R., and David K. Hayes. Food and Beverage Cost Control. 5th ed. Hoboken, N.J: Wiley, 2011.

Dyfyniad MLA

Dopson, Lea R., and David K. Hayes. Food and Beverage Cost Control. 5th ed. Wiley, 2011.

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