There has been data (": Routledge Encyclopedias of the Middle Ages (Routledge Revivals: Routledge Encyclopedias of the Middle Ages) - ISBN-13 978-1-351-65937-6") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Fri Jan 24 19:33:39 2020, so the data displayed here has been removed .