Gaitonde, P. Comparative economic systems.
Chicago-čujuhus (17. p.)Gaitonde, P. Comparative Economic Systems.
MLA-čujuhus (9. p.)Gaitonde, P. Comparative Economic Systems.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.