v.1. The land of Iran, edited by W.B. Fisher.-- v.2. The Median and Achaemenian periods, edited by Ilya Gershevitch.-- v.3. The Seleucid, Parthian, and Sasanian periods, edited by Ehsan Yarshater (2 pts.).-- v.4. The period from the Arab invasion to the Saljuqs.-- v.5. The Saljuq and Mongol periods, edited by J.A. Boyle.-- v.6. The Timurid and Safavid periods, edited by Peter Jackson and Laurence Lockhart.-- v.7. From Nadir Shah to the Islamic Republic, edited by Peter Avery, Gavin Hambly, and Charles Melville