CLARK, C. (1967). The economics of subsistence agriculture. Macmillan.
Tohutoru Kātū Chicago (17th ed.)CLARK, Colin. The Economics of Subsistence Agriculture. London: Macmillan, 1967.
Tohutoro MLA (9th ed.)CLARK, Colin. The Economics of Subsistence Agriculture. Macmillan, 1967.
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