Cambridge University Press. ISBN 0-521-01747-5 . Retrieved on 2006-07-08 . Runciman, Steven (1987). A History of the Crusades (Vol 2) The Kingdom of Jerusalem . Cambridge : Cambridge University Press, pp403-469. ISBN 0-521-34771-8 . Retrieved on 2006-07-08 . External links Wikiquote has a collection of quotations related to: Kingdom of Heaven