Columbia subject headings:
Greeks--Pontus--History--20th century.
Greeks--Soviet Union--History--20th century.
Kalantidēs, Grēgorēs P.
Harvard subject headings:
Greeks--Pontus--History--20th century.
Greeks--Soviet Union--History--20th century.
Kalantidēs, Grēgorēs P.
Princeton subject headings:
Greeks--Pontus--Biography.
Greeks--Pontus--History--20th century.
Greeks--Soviet Union--Biography.
Kalantidēs, Grēgorēs P., 1934-