Dyfyniad APA

United States. Food and Nutrition Service. (1971). Food and nutrition. Food and Nutrition Service, U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O..

Dyfyniad Arddull Chicago

United States. Food and Nutrition Service. Food and Nutrition. Washington, D.C.: Food and Nutrition Service, U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., 1971.

Dyfyniad MLA

United States. Food and Nutrition Service. Food and Nutrition. Food and Nutrition Service, U.S. Dept. of Agriculture : For sale by the Supt. of Docs., U.S. G.P.O., 1971.

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