A Declaration of the Truth revealed in the Bible (Birmingham: Christadelphian Magazine and Publishing Association). An early summary of Christadelphian beliefs. Available online
bartleby.com
'Christadelphians', The Columbia Enclyclopedia. Available online
Michael Ashton, The Danger of Cults: From Fervour to Fanaticism (Birmingham: Christadelphian Magazine and Publishing Association). Available online
John Thomas, Elpis Israel: an exposition of the Kingdom of God with reference to the time of the end and the age to come (London: 1850). Availableonline
Most Christadelphians believe that the Kingdom will be centred upon Israel but Jesus Christ will also reign over all the other nations on the earth. Some believe that the Kingdom itself is limited to the land of Israel, but has a worldwide empire. See What is the true Gospel?, availableonline