Cochrane, W. W. (1993). The development of American agriculture: A historical analysis (2nd ed.). University of Minnesota Press.
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Chicago-čujuhus (17. p.)
Cochrane, Willard Wesley. The Development of American Agriculture: A Historical Analysis. 2nd ed. Minneapolis: University of Minnesota Press, 1993.
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MLA-čujuhus (9. p.)
Cochrane, Willard Wesley. The Development of American Agriculture: A Historical Analysis. 2nd ed. University of Minnesota Press, 1993.
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