المساهمون: Merkaz le-ṭekhnologyah ḥinukhit (Ramat Aviv, Israel)

مصطلحات موضوعية: Waterworks -- Israel -- Gush Dan., Computer games -- Israel -- Juvenile software., Water resources development -- Israel., Creative thinking in children -- Study and teaching -- Juvenile software., Water-supply -- Israel -- Management., Water -- Israel -- Distribution., Water use -- Israel., CD-ROMs