Citace podle APA (7th ed.)

Não informado. (2004). Ers. U.S. Department of Agriculture, Economic Research Service.

Citace podle Chicago (17th ed.)

Não informado. Ers. Washington: U.S. Department of Agriculture, Economic Research Service, 2004.

Citace podle MLA (8th ed.)

Não informado. Ers. U.S. Department of Agriculture, Economic Research Service, 2004.

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