Byzantine books and bookmen. (Dumbarton Oaks, Center for Byzantine Studies, Trustees for Harvard University ; Distributed by J.J. Augustin, 1975)
"The papers published in this volume are substantially the same as those delivered at a Colloquium ... directed by Professors Ihor Sevčenko and Cyril Mango and held at Dumbarton Oaks in the spring of 1971."