Wonnacott, P., & Wonnacott, R. (1990). Economics (4th ed.). John Wiley and Sons.
Chicago-čujuhus (17. p.)Wonnacott, Paul, juo Ronald Wonnacott. Economics. 4th ed. New York: John Wiley and Sons, 1990.
MLA-čujuhus (9. p.)Wonnacott, Paul, juo Ronald Wonnacott. Economics. 4th ed. John Wiley and Sons, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.