Ozment, S. E. (1980). The age of reform (1250-1550): An intellectual and religious history of late medieval and Reformation Europe. Yale University Press.

Ozment, Steven E. The Age of Reform (1250-1550): An Intellectual and Religious History of Late Medieval and Reformation Europe. New Haven: Yale University Press, 1980.

Ozment, Steven E. The Age of Reform (1250-1550): An Intellectual and Religious History of Late Medieval and Reformation Europe. Yale University Press, 1980.