Παραπομπή σε μορφή APA (7η εκδ.)

Lebbe, I. (1982). North West Land & Water Resources Development Project: Vanathavillu socio-economic study. Agrarian Research & Training Institute.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Lebbe, Ishak. North West Land & Water Resources Development Project: Vanathavillu Socio-economic Study. Colombo: Agrarian Research & Training Institute, 1982.

Παραπομπή σε μορφή MLA (8th εκδ.)

Lebbe, Ishak. North West Land & Water Resources Development Project: Vanathavillu Socio-economic Study. Agrarian Research & Training Institute, 1982.