Columbia subject headings:
Harvard subject headings:
Civil rights--El Salvador--Congresses.
El Salvador--Foreign relations--United States--Congresses.
El Salvador--Politics and government--1979-1992--Congresses.
United States--Foreign relations--El Salvador--Congresses.
Princeton subject headings:
Civil rights--El Salvador--Congresses.
El Salvador--Foreign relations--United States--Congresses.
El Salvador--Politics and government--1979-1992--Congresses.
United States--Foreign relations--El Salvador--Congresses.