RICARDO, D. (1969). The principles of political economy and taxation. Dutton.
Chicago-čujuhus (17. p.)RICARDO, David. The Principles of Political Economy and Taxation. London: Dutton, 1969.
MLA-čujuhus (9. p.)RICARDO, David. The Principles of Political Economy and Taxation. Dutton, 1969.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.