Columbia subject headings:
Caucasian languages--Study and teaching--Soviet Union.
I︠A︡kovlev, N. F. (Nikolaĭ Feofanovich), 1892-1974.
Linguistics--Soviet Union--History.
Harvard subject headings:
Caucasian languages--Study and teaching--Soviet Union.
I︠A︡kovlev, N. F. (Nikolaĭ Feofanovich), 1892-1974
I︠A︡kovlev, N. F. (Nikolaĭ Feofanovich)
Linguistics--Soviet Union--History.
Linguistics--Soviet Union.
Princeton subject headings:
I︠A︡kovlev, N. F. (Nikolaĭ Feofanovich), 1892-1974.
Linguistics--Soviet Union.