A catalogue of the Muhammadan coins in the British Museum. ([Vol. I.] A catalogue of the Arab-Sassanian coins - Umaiyad governors in the East, Arab-Ephthalites, 'Abbāsid governors in Ṭabaristān and Buk̲h̲ārā. Vol. II. A catalogue of the Arab-Byzantine and post-reform Umaiyad coins) / 
British Museum.Department of Coins and Medals.
Walker, John.
London, 
1941-1956.