Hydroprojekt Praha & World Health Organization Regional Office for Europe. (1986). Standard model designs for rural water supplies. World Health Organization, Regional Office for Europe.
Παραπομπή σε μορφή Chicago (17η εκδ.)Hydroprojekt Praha και World Health Organization Regional Office for Europe. Standard Model Designs for Rural Water Supplies. Copenhagen: World Health Organization, Regional Office for Europe, 1986.
Παραπομπή σε μορφή MLA (9th εκδ.)Hydroprojekt Praha και World Health Organization Regional Office for Europe. Standard Model Designs for Rural Water Supplies. World Health Organization, Regional Office for Europe, 1986.
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