Wharton, C. R. (1969). Subsistence agriculture and economic development. Adline.
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Chicago-čujuhus (17. p.)
Wharton, Clifton R. Subsistence Agriculture and Economic Development. Chicago: Adline, 1969.
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MLA-čujuhus (9. p.)
Wharton, Clifton R. Subsistence Agriculture and Economic Development. Adline, 1969.
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