Dyfyniad APA

(1971). The food service industry: Type, quantity, and value of foods used. Washington, D.C: U.S. Department of Agriculture.

Dyfyniad Arddull Chicago

The Food Service Industry: Type, Quantity, and Value of Foods Used. Washington, D.C: U.S. Department of Agriculture, 1971.

Dyfyniad MLA

The Food Service Industry: Type, Quantity, and Value of Foods Used. Washington, D.C: U.S. Department of Agriculture, 1971.

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