Columbia subject headings:
Compañía Swift de La Plata.
Packing-house workers--Argentina--Berisso--History--20th century.
Harvard subject headings:
Argentina--Politics and government--1955-1983
Industrial policy--Argentina
Swift Armour S.A. Argentina
Princeton subject headings:
Compañía Swift de La Plata.
Packing-house workers--Argentina--Berisso--History--20th century.