Educational Foundation (National Restaurant Association). (2007). Inventory and purchasing: Competency guide. Pearson Prentice Hall.
Dyfyniad Arddull ChicagoEducational Foundation (National Restaurant Association). Inventory and Purchasing: Competency Guide. Upper Saddle River, N.J: Pearson Prentice Hall, 2007.
Dyfyniad MLAEducational Foundation (National Restaurant Association). Inventory and Purchasing: Competency Guide. Pearson Prentice Hall, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.