Columbia subject headings:
Gruzdev, I. A. (Ilʹi︠a︡ Aleksandrovich), 1892-1960.
Harvard subject headings:
Gorky, Maksim, 1868-1936. Correspondence.
Gruzdev, I. A. (Ilʹi͡a Aleksandrovich), 1892-1960--Correspondence.
Princeton subject headings:
Gruzdev, I. A. (Ilʹi︠a︡ Aleksandrovich), 1892-1960.