Ekelurd, R. B. (1997). A History Of Economic Theory And Method Robert F. Hebert. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Ekelurd, Robert B. A History Of Economic Theory And Method Robert F. Hebert. McGraw-Hill, 1997.
Lua MLA (8ú heag.)Ekelurd, Robert B. A History Of Economic Theory And Method Robert F. Hebert. McGraw-Hill, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.