Columbia subject headings:
Paul, the Apostle, Saint--Sources.
Peter, the Apostle, Saint--Sources.
Harvard subject headings:
Apocryphal Acts of the Apostles--Criticism, interpretation, etc.
Clement I, Pope. First epistle of Clement to the Corinthians.
Martyrologies--History and criticism.
Paul, the Apostle, Saint
Paul, the Apostle, Saint--Sources.
Peter, the Apostle, Saint--Death and burial.
Peter, the Apostle, Saint--Homes and haunts--Rome.
Peter, the Apostle, Saint--In literature.
Peter, the Apostle, Saint--Legends.
Peter, the Apostle, Saint--Sources.
Peter, the Apostle, Saint--Travel--Rome.
Pseudo-Ignatius, of Antioch.
Simon, Magus, active 1st century.
Princeton subject headings:
Paul, the Apostle, Saint--Sources.
Peter, the Apostle, Saint--Sources.