Cohen, R. (1949). The economics of agriculture. Univ. Press.
Chicago-čujuhus (17. p.)Cohen, R. The Economics of Agriculture. Cambridge: Univ. Press, 1949.
MLA-čujuhus (9. p.)Cohen, R. The Economics of Agriculture. Univ. Press, 1949.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.