Columbia subject headings:
Harvard subject headings:
El Salvador--Foreign relations--United States.
Elections--Corrupt practices--El Salvador.
Elections--El Salvador--History--20th century.
United States--Foreign relations--El Salvador.
Princeton subject headings:
El Salvador--Foreign relations--United States.
Elections--El Salvador--Corrupt practices.
Elections--El Salvador--History--20th century.
United States--Foreign relations--El Salvador.