Gaya APA

Katbi, G, K. (2010). Islamic land tax (al-Kharaj) : from the Islamic conquests to the Abbasid Period . London: IB Tauris.

Gaya MLA

Katbi, Ghaida, Khazna. "Islamic land tax (al-Kharaj) : from the Islamic conquests to the Abbasid Period". London: IB Tauris, 2010. Text.