Παραπομπή σε μορφή APA (7η εκδ.)

People's Bank (Sri Lanka). Research Dept. (1978). Trade and formation of sectors of production: The build-up of a Mahaweli economy. People's Bank, Research Dept..

Παραπομπή σε μορφή Chicago (17η εκδ.)

People's Bank (Sri Lanka). Research Dept. Trade and Formation of Sectors of Production: The Build-up of a Mahaweli Economy. Colombo: People's Bank, Research Dept., 1978.

Παραπομπή σε μορφή MLA (8th εκδ.)

People's Bank (Sri Lanka). Research Dept. Trade and Formation of Sectors of Production: The Build-up of a Mahaweli Economy. People's Bank, Research Dept., 1978.