Columbia subject headings:
Harvard subject headings:
Gaĭdukevich, Natalʹi︠a︡ Aleksandrovna--Correspondence.
T︠S︡vetaeva, Marina, 1892-1941--Correspondence.
Princeton subject headings:
Gaĭdukevich, Natalʹi︠a︡ Aleksandrovna--Correspondence.
T︠S︡vetaeva, Marina, 1892-1941. Correspondence.