Boyes,William, & Melvin, M. (1991). Economics. Houghton Mifflin.
Chicago-čujuhus (17. p.)Boyes,William, juo Michael Melvin. Economics. Boston: Houghton Mifflin, 1991.
MLA-čujuhus (9. p.)Boyes,William, juo Michael Melvin. Economics. Houghton Mifflin, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.