Columbia subject headings:
Harvard subject headings:
Romania--Foreign relations--Turkey--Sources.
Turkey--Foreign relations--Romania--Sources.
Turkey--History--Süleyman I, 1520-1566--Sources.
Princeton subject headings:
Krymskai︠a︡ oblastʹ (Ukraine)--History--Sources.
Moldavia--History--Sources.
Romania--Foreign relations--Turkey.
Romania--History--To 1711--Sources.
Turkey--Foreign relations--Romania.
Turkey--History--Suleyman I, 1520-1566--Sources.
Wallachia--History--Sources.