Waud, R. N. (1983). Economics (2nd ed.). Harper and Row.
Chicago-čujuhus (17. p.)Waud, Roger N. Economics. 2nd ed. New York: Harper and Row, 1983.
MLA-čujuhus (9. p.)Waud, Roger N. Economics. 2nd ed. Harper and Row, 1983.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.