Egbert, D. D. (1940). The Tickhill psalter and related manuscripts: A school of manuscript illumination in England during the early fourteenth century. The New York Public Library and the Dept. of Art and Archaeology of Princeton University.

Egbert, Donald Drew. The Tickhill Psalter and Related Manuscripts: A School of Manuscript Illumination in England During the Early Fourteenth Century. The New York Public Library and the Dept. of Art and Archaeology of Princeton University, 1940.