Columbia subject headings:
Iran--History--640-1500.
Saffarid dynasty.
Yaʻqūb Lays̲ Ṣaffār, d. 879.
Harvard subject headings:
Iran--History--640-1500
Saffārid dynasty.
Yaʻqūb Lays̲ Ṣaffār, -879.
Princeton subject headings:
Iran--History--640-1500.
Saffārid dynasty.
Yaʻqūb Lays̲ Ṣaffār, d. 879.