Yohe, G. W. (1989). Study guide to accompany samuel economics (Third edition.). Mcgraw hill.
Chicago-čujuhus (17. p.)Yohe, Gary W. Study Guide to Accompany Samuel Economics. Third edition. New York: Mcgraw hill, 1989.
MLA-čujuhus (9. p.)Yohe, Gary W. Study Guide to Accompany Samuel Economics. Third edition. Mcgraw hill, 1989.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.