Columbia subject headings:
Harvard subject headings:
Cybernetics--Congresses.
Dependency--Congresses.
Developing countries--Mathematical models--Congresses.
Mexico--Economic conditions--1970-1982--Mathematical models--Congresses.
System theory--Congresses
Princeton subject headings:
Cybernetics--Congresses.
Dependency--Congresses.
Developing countries--Economic conditions--Mathematical models--Congresses.
Mexico--Economic conditions--1970-1982--Mathematical models--Congresses.
System theory--Congresses.