National Restaurant Association, Educational Foundation. (2005). Food and beverage cost control: Student workbook (3rd ed.). Wiley.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Restaurant Association, Educational Foundation. Food and Beverage Cost Control: Student Workbook. 3rd ed. Hoboken, N.J: Wiley, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Restaurant Association, Educational Foundation. Food and Beverage Cost Control: Student Workbook. 3rd ed. Wiley, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.