Columbia subject headings:
Harvard subject headings:
Catalan language--Prepositions--History.
Galician language--Prepositions--History.
Portuguese language--Prepositions--History.
Romance languages--Prepositions--History.
Spanish language--Prepositions--History.
Princeton subject headings:
Catalan language--Prepositions--History.
Galician language--Prepositions--History.
Portuguese language--Prepositions--History.
Romance languages--Prepositions--History.
Spanish language--Prepositions--History.