Columbia subject headings:
Argentina--Politics and government.
Political ballads and songs--Argentina--History and criticism.
Political ballads and songs--Argentina--Texts.
Harvard subject headings:
Argentina--Politics and government.
Political ballads and songs--Argentina--History and criticism.
Political ballads and songs--Argentina--Texts.
Princeton subject headings:
Argentina--Politics and government.
Political ballads and songs--Argentina--History and criticism.
Political ballads and songs--Argentina--Texts.