Columbia subject headings:
Arabic language--History.
Arabic language--Style.
Grammar, Comparative and general--Negatives.
Historical linguistics.
Harvard subject headings:
Arabic language--History.
Arabic language--Style.
Grammar, Comparative and general--Negatives.
Historical linguistics.
Princeton subject headings:
Arabic language--History.
Arabic language--Style.
Grammar, Comparative and general--Negatives.
Historical linguistics.