Bunce, A. C. (1945). The economics of soil conservation. The Iowa States College.
Chicago-čujuhus (17. p.)Bunce, Arthur C. The Economics of Soil Conservation. Ames: The Iowa States College, 1945.
MLA-čujuhus (9. p.)Bunce, Arthur C. The Economics of Soil Conservation. The Iowa States College, 1945.
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