APA-viite

United States Department of Agriculture. (1981). Will there be enough food. Washington, D.C: The Department.

Chicago-tyylinen lähdeviittaus

United States Department of Agriculture. Will There Be Enough Food. Washington, D.C: The Department, 1981.

MLA-viite

United States Department of Agriculture. Will There Be Enough Food. Washington, D.C: The Department, 1981.

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