Saint Bernard's Works, especially the Epistles; Mabillon; Helyot's
Histoire des Ordres Monastiques; Dugdale's Monasticon; Doring's
Geschichte der Monchsorden; Montalembert's Les Moines d'Occident;
Milman's Latin Christianity; Morison's Life and Times of Saint
Bernard; Lives of the English Saints; Stephen Harding; Histoire
d'Abbaye do Cluny, par M. P. Lorain; Neander's Church History;
Butler's Lives of the Saints; Vaughan's Life of Thomas Aquinas;
Digby's Ages of Faith.