Hyman, D. N. (1994). Microeconomics (3rd.ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Hyman, David N. Microeconomics. 3rd.ed. Illinois: Irwin, 1994.
Lua MLA (9ú heag.)Hyman, David N. Microeconomics. 3rd.ed. Irwin, 1994.
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