Columbia subject headings:
Serbia--Foreign relations--Sources--Bibliography.
Serbia--Foreign relations--Treaties--Bibliography.
Yugoslavia--Foreign relations--Sources--Bibliography.
Yugoslavia--Foreign relations--Treaties--Bibliography.
Harvard subject headings:
Serbia--Foreign relations--Sources--Bibliography.
Serbia--Foreign relations--Treaties--Bibliography.
Yugoslavia--Foreign relations--Sources--Bibliography.
Yugoslavia--Foreign relations--Treaties--Bibliography.
Princeton subject headings:
Serbia--Foreign relations--Sources--Bibliography.
Serbia--Foreign relations--Treaties--Bibliography.
Yugoslavia--Foreign relations--Sources--Bibliography.
Yugoslavia--Foreign relations--Treaties--Bibliography.