WILCOX, W. W. (1951). Economics of American Agriculture. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)WILCOX, Walter W. Economics of American Agriculture. Prentice-Hall, 1951.
Lua MLA (8ú heag.)WILCOX, Walter W. Economics of American Agriculture. Prentice-Hall, 1951.
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