United States. Department of Agriculture & Hayes, J. (1981). Will there be enough food? The Department.
Lua i Stíl Chicago (17ú heag.)United States. Department of Agriculture agus Jack Hayes. Will There Be Enough Food? [Washington]: The Department, 1981.
Lua MLA (9ú heag.)United States. Department of Agriculture agus Jack Hayes. Will There Be Enough Food? The Department, 1981.
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