Não informado. (1943). Economics newsletter. National Planning Association.
Lua i Stíl Chicago (17ú heag.)Não informado. Economics Newsletter. Washington: National Planning Association, 1943.
Lua MLA (8ú heag.)Não informado. Economics Newsletter. National Planning Association, 1943.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.