Columbia subject headings:
Sacred songs--Spain--Texts.
Songs, Spanish--Spain--Texts.
Villancicos (Music)--Texts.
Harvard subject headings:
Sacred songs, Spanish--Spain--Texts.
Songs, Spanish--Spain--Texts.
Villancicos (Music)--Texts.
Princeton subject headings:
Sacred songs, Spanish--Spain--Texts.
Songs, Spanish--Spain--Texts.
Villancicos (Music)--Texts.