Columbia subject headings:
Papoulidēs, Kōnstantinos K.--History and criticism--Bibliography.
Theology--Greece--History--Bibliography.
Harvard subject headings:
Greece--Foreign relations--Russia--Bibliography.
Papoulidēs, Kōnstantinos K.--Bibliography.
Papoulidēs, Kōnstantinos K.--Criticism and interpretation--Bibliography.
Theology--Greece--History--Bibliography.
Princeton subject headings:
Papoulidēs, Kōnstantinos K.--History and criticism--Bibliography.
Theology--Greece--History--Bibliography.