U.S. Bureau of Labor Statistics. (1941). Retail prices of food. U.S. Govt. Print. Off.
Chicago (17e ed.) BronvermeldingU.S. Bureau of Labor Statistics. Retail Prices of Food. Washington, D.C: U.S. Govt. Print. Off, 1941.
MLA (9e ed.) BronvermeldingU.S. Bureau of Labor Statistics. Retail Prices of Food. U.S. Govt. Print. Off, 1941.
Let op: Deze citaties zijn niet altijd 100% accuraat.