Columbia subject headings:
I͡Akubinskiĭ, Lev Petrovich--Bibliography.
Language and languages.
Linguistics.
Russian language--History.
Harvard subject headings:
Linguistics.
Poetics.
Princeton subject headings:
I︠A︡kubinskiĭ, L. P. (Lev Petrovich), 1892-1945--Bibliography.
Language and languages.
Linguistics.
Russian language--History.