Columbia subject headings:
City planning--Yemen (Republic)--Ṣanʻāʼ.
Harvard subject headings:
City planning--Yemen (Republic)--Ṣanʻāʼ
City planning--Yemen--Ṣanʻāʾ.
Princeton subject headings:
Ṣanʻāʼ (Yemen)--Antiquities.
Ṣanʻāʼ (Yemen)--Description.