Παραπομπή σε μορφή APA (7η εκδ.)

United Nations Economic Commission for Europe Committee on Water Problems. (1983). Groundwater protection: Strategies and practices. Greek Ministry of Energy and Natural Resources Water and Natural Resources Directorate.

Παραπομπή σε μορφή Chicago (17η εκδ.)

United Nations Economic Commission for Europe Committee on Water Problems. Groundwater Protection: Strategies and Practices. Athens: Greek Ministry of Energy and Natural Resources Water and Natural Resources Directorate, 1983.

Παραπομπή σε μορφή MLA (8th εκδ.)

United Nations Economic Commission for Europe Committee on Water Problems. Groundwater Protection: Strategies and Practices. Greek Ministry of Energy and Natural Resources Water and Natural Resources Directorate, 1983.