Caliphate and sultanate in medieval Persia - Siddiqi, Amir Hasan (New Delhi Adam Publishers & Distributors, 2006)
First ed. published under the title: Caliphate and kingship in medieval Persia.
Revision of the author's thesis (Ph. D.)--London University, 1934.
Keywords: Caliphate; Constitutional history, Medieval; Monarchy -- Iran -- History -- To 1500.; Iran -- History -- 640-1500.; Iran -- Politics and government; Islamic Empire -- Politics and government