Columbia subject headings:
Chad--Foreign relations--Libya.
Chad--History--Civil War, 1965---Participation, Libyan.
Libya--Foreign relations--Chad.
Libyans--Chad--History--20th century.
Qaddafi, Muammar.
Harvard subject headings:
Chad--Foreign relations--Libya.
Chad--History--Civil War, 1965---Participation, Libyan.
Libya--Foreign relations--Chad.
Libyans--Chad--History--20th century.
Qaddafi, Muammar
Princeton subject headings:
Chad--Foreign relations--Libya.
Chad--Politics and government.
Libya--Foreign relations--Chad.