Cohen, R. (1949). The economics of agriculture. Univ. Press.
Cita Chicago (17th ed.)Cohen, R. The Economics of Agriculture. Cambridge: Univ. Press, 1949.
Cita MLA (9th ed.)Cohen, R. The Economics of Agriculture. Univ. Press, 1949.
Atenció: Aquestes cites poden no estar 100% correctes.