Columbia subject headings:
Harvard subject headings:
Africa, Southern--Foreign relations--Nigeria.
Nigeria--Foreign relations--Africa, Southern.
Nigeria--Foreign relations--Zimbabwe.
Zimbabwe--Foreign relations--Nigeria.
Zimbabwe--History--Chimurenga War, 1966-1980--Diplomatic history.
Princeton subject headings:
Africa, Southern--Foreign relations--Nigeria.
Nigeria--Foreign relations--Africa, Southern.
Nigeria--Foreign relations--Zimbabwe.
Zimbabwe--Foreign relations--Nigeria.
Zimbabwe--History--Chimurenga War, 1966-1980--Diplomatic history.