Não informado. (1975). Economic Review. People's Bank, Research Department.
Chicago-referens (17:e uppl.)Não informado. Economic Review. Colombo: People's Bank, Research Department, 1975.
MLA-referens (8:e uppl.)Não informado. Economic Review. People's Bank, Research Department, 1975.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.