HYMAN, D. N. (1992). Microeconomics.-- Ed.2. Irwin.
Lua i Stíl Chicago (17ú heag.)HYMAN, David N. Microeconomics.-- Ed.2. Homewood: Irwin, 1992.
Lua MLA (9ú heag.)HYMAN, David N. Microeconomics.-- Ed.2. Irwin, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.