Columbia subject headings:
New towns--Congresses.
Ḥayy al-Riyāḍ (Morocco)--Congresses.
Harvard subject headings:
Ḥayy al-Riyāḍ (Morocco)--Congresses.
New towns--Congresses.
Princeton subject headings:
Ḥayy al-Riyāḍ (Morocco)--Congresses.
New towns--Morocco--Congresses.
Planned communities--Morocco--Congresses.