Lehmann, M. B. (1997). Real world economic applications: The Wall Street journal workbook (6th ed.). Irwin.
Lua i Stíl Chicago (17ú heag.)Lehmann, Michael B. Real World Economic Applications: The Wall Street Journal Workbook. 6th ed. Chicago: Irwin, 1997.
Lua MLA (8ú heag.)Lehmann, Michael B. Real World Economic Applications: The Wall Street Journal Workbook. 6th ed. Irwin, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.