Columbia subject headings:
Romania--Foreign relations--Turkey.
Romania--History--To 1711.
Turkey--Foreign relations--Romania.
Turkey--History--1453-1683.
Harvard subject headings:
Romania--Foreign relations--Turkey--Sources.
Romania--History--To 1711--Sources.
Turkey--Foreign relations--Romania--Sources.
Turkey--History--1453-1683--Sources.
Princeton subject headings:
Romania--Foreign relations--Turkey--Sources.
Romania--History--To 1711--Sources.
Turkey--Foreign relations--Romania--Sources.
Turkey--History--1453-1683--Sources.