TULLOCK, G. The new world of economic. Richard D. Newin.
Lua i Stíl Chicago (17ú heag.)TULLOCK, Gordon. The New World of Economic. Richard D. Newin.
Lua MLA (8ú heag.)TULLOCK, Gordon. The New World of Economic. Richard D. Newin.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.