Christian Missionary Activity in the Early Middle Ages (Book Review)
Six essays by author Richard E. Sullivan. "Church historians, medieval historians, and all medieval scholars, especially those of the early Middle Ages, take note: this is a volume of well-written, expertly documented, and perceptive scholarship, well worth a close read from cover to cover"--from the review.
Greeley, June Ann. "Christian Missionary Activity In The Early Middle Ages." Catholic Historical Review 81.3 (1995): 419-421.