Drummond, H. E., & Goodwin, J. W. (2014). Agricultural economics (3rd ed.). Prentice Hall.
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Chicago-čujuhus (17. p.)
Drummond, H. Evan, juo John W. Goodwin. Agricultural Economics. 3rd ed. Upper Saddle River, NJ: Prentice Hall, 2014.
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MLA-čujuhus (9. p.)
Drummond, H. Evan, juo John W. Goodwin. Agricultural Economics. 3rd ed. Prentice Hall, 2014.
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