Dyfyniad APA

U.S. Bureau of Labor Statistics. (1941). Retail prices of food. U.S. Govt. Print. Off.

Dyfyniad Arddull Chicago

U.S. Bureau of Labor Statistics. Retail Prices of Food. Washington, D.C: U.S. Govt. Print. Off, 1941.

Dyfyniad MLA

U.S. Bureau of Labor Statistics. Retail Prices of Food. U.S. Govt. Print. Off, 1941.

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