Não informado. (1975). Economic Review. People's Bank, Research Department.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Economic Review. Colombo: People's Bank, Research Department, 1975.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Economic Review. People's Bank, Research Department, 1975.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.