CLARK, C. (1967). The economics of subsistence agriculture. Macmillan.
Cita Chicago (17th ed.)CLARK, Colin. The Economics of Subsistence Agriculture. London: Macmillan, 1967.
Cita MLA (9th ed.)CLARK, Colin. The Economics of Subsistence Agriculture. Macmillan, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.