HANSON, J. (1972). A Textbook Of Economics J.k. Hanson. MacDonald & Evans.
Lua i Stíl Chicago (17ú heag.)HANSON, J.K. A Textbook Of Economics J.k. Hanson. MacDonald & Evans, 1972.
Lua MLA (8ú heag.)HANSON, J.K. A Textbook Of Economics J.k. Hanson. MacDonald & Evans, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.