Columbia subject headings:
Russians--China--Biography.
Sofronova, Ekaterina, 1941-
Harvard subject headings:
Russians--China--Biography.
Sofronova, Ekaterina, 1941-
Princeton subject headings:
Binghamton (N.Y.)--Biography.
Endicott (N.Y.)--Biography.
Political refugees--Soviet Union--Biography.
Russians--China--Biography.
Russians--Foreign countries--Biography.
Russians--New York (State).
Sofronova, Ekaterina Ivanovna.