Columbia subject headings:
Harvard subject headings:
Argentina--Social conditions--20th century.
Argentine periodicals--History--20th century.
Marginality, Social--Argentina--History--20th century.
Poverty--Argentina--History--20th century.
Princeton subject headings:
Argentina--Social conditions--20th century.
Argentine periodicals--History--20th century.
Marginality, Social--Argentina--History--20th century.
Poverty--Argentina--History--20th century.