The pretorian prefect from Commodus to Diocletian (A.D. 180-304) - Howe, Laurence Lee, 1907- (University of Chicago Press, 1942)
Issued also as thesis (Ph.D.) University of Chicago.
"List of the pretorian prefects from the beginning of the reign of Commodus to the abdication of Diocletian": pages 65-95.