Columbia subject headings:
Mexico--Politics and government--1988-2000--Congresses.
Social movements--Mexico--Congresses.
Sovereignty--Congresses.
Harvard subject headings:
Mexico--Economic conditions--1994---Congresses.
Mexico--Economic policy--1994---Congresses.
Mexico--Politics and government--1988---Congresses.
Mexico--Politics and government--1988-2000--Congresses.
Social movements--Mexico--Congresses.
Sovereignty--Congresses.
Princeton subject headings:
Mexico--Economic conditions--1994---Congresses.
Mexico--Economic policy--1994---Congresses.
Mexico--Politics and government--2000---Congresses.
Social movements--Mexico--Congresses.
Sovereignty--Congresses.