Columbia subject headings:
Harvard subject headings:
Astrakov, N. I. (Nikolaĭ Ivanovich), 1809-1842--Correspondence.
Astrakova, T. A. (Tatʹi͡ana Alekseevna), 1814-1892--Correspondence.
Authors, Russian--19th century--Correspondence
Herzen, Aleksandr, 1812-1870--Correspondence.
Revolutionaries--Russia--Correspondence
Princeton subject headings:
Astrakov, N. I. (Nikolaĭ Ivanovich), 1809-1842.
Astrakova, T. A. (Tatʹi︠a︡na Alekseevna), 1814-1892.