Columbia subject headings:
Harvard subject headings:
Christian martyrs.
Martyrdom of Polycarp--Criticism, Textual.
Pionius, Saint, -251.
Princeton subject headings:
Christian martyrs--Biography--History and criticism.
Martyrdom of Polycarp--Criticism, Textual.
Martyrium Pionii--Criticism, Textual.
Martyrologies--History and criticism.
Pionius, Saint, -251.
Polycarp, Saint, Bishop of Smyrna