The Norman Anonymous of 1100 A.D. Toward the identification and evaluation of the so-called Anonymous of York [i.e. the supposed author of Codex 415 in the library of Corpus Christi College, Cambridge, the so-called "York" Tractates]. Issued as an extra number of the Harvard Theological Review.
Williams, George Huntston.
Cambridge, Mass. & London, 
1951.