HARDIN, C. M. (1952). The Politics of agriculture: Soil conservation and the struggle. The Free Pr..
Chicago-čujuhus (17. p.)HARDIN, Charles M. The Politics of Agriculture: Soil Conservation and the Struggle. Illinois: The Free Pr., 1952.
MLA-čujuhus (9. p.)HARDIN, Charles M. The Politics of Agriculture: Soil Conservation and the Struggle. The Free Pr., 1952.
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