Não informado. (1975). Economic Review. People's Bank, Research Department.
Lua i Stíl Chicago (17ú heag.)Não informado. Economic Review. Colombo: People's Bank, Research Department, 1975.
Lua MLA (8ú heag.)Não informado. Economic Review. People's Bank, Research Department, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.