Columbia subject headings:
Brazilian poetry--Brazil--Maranhão--History and criticism.
Folk songs--Brazil--Maranhão--History and criticism.
Harvard subject headings:
Brazilian poetry--Maranhão--History and criticism.
Folk songs--Brazil--Maranhão--History and criticism.
Princeton subject headings:
Brazilian poetry--Maranhão--History and criticism.
Folk songs--Brazil--Maranhão--History and criticism.