McConnell, C. (1999). Economics [ada CD] ed.14. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)McConnell, Campbell. Economics [ada CD] Ed.14. McGraw-Hill, 1999.
Lua MLA (8ú heag.)McConnell, Campbell. Economics [ada CD] Ed.14. McGraw-Hill, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.