Columbia subject headings:
Water-supply--Saudi Arabia--Jiddah.
Wells--Saudi Arabia--Jiddah.
ʻAyn al-ʻAzīzah (Jiddah, Saudi Arabia)
Harvard subject headings:
Water-supply--Saudi Arabia--Jiddah.
Wells--Saudi Arabia--Jiddah.
ʻAyn al-ʻAzīzah (Jiddah, Saudi Arabia)
Princeton subject headings:
Water-supply--Saudi Arabia--Jiddah.
Wells--Saudi Arabia--Jiddah.
ʻAyn al-ʻAzīzah (Jiddah, Saudi Arabia)