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