Não informado. (1960). Swedish economy. National Institute of Economic Research.
Lua i Stíl Chicago (17ú heag.)Não informado. Swedish Economy. Stockholm: National Institute of Economic Research, 1960.
Lua MLA (8ú heag.)Não informado. Swedish Economy. National Institute of Economic Research, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.