Columbia subject headings:
Russian language--Adverb.
Russian language--Lexicography.
Russian language--Style.
Russian language--Variation.
Harvard subject headings:
Russian language--Adverb.
Russian language--Lexicography.
Russian language--Style.
Russian language--Variation.
Princeton subject headings:
Russian language--Adverb.
Russian language--Lexicography.
Russian language--Style.