81
Oecumenius
| The Catholic University of America Press |
2006
83
Origen
| Catholic University of America Press |
1989
85
Orosius, Paulus
| Catholic University of America Press |
1981
86
Ortiz, Jared
| The Catholic University of America Press |
2023
87
Peter, Saint
| The Catholic University of America Press |
1953
88