Columbia subject headings:
Kapit︠s︡a, P. L. (Petr Leonidovich), 1894-1984.
Political persecution--Soviet Union.
Russia--Intellectual life--20th century.
Tolstoy, Aleksey Nikolayevich, graf, 1883-1945.
Harvard subject headings:
Authors, Russian--20th century--Biography
Kapit͡sa, P. L. (Petr Leonidovich), 1894-1984.
Physicists--Soviet Union--Biography
Tolstoy, Aleksey Nikolayevich, graf, 1883-1945
Princeton subject headings:
Authors, Russian--20th century--Biography.
Kapit︠s︡a, P. L. (Petr Leonidovich), 1894-1984.
Physicists--Soviet Union--Biography.
Tolstoy, Aleksey Nikolayevich, graf, 1883-1945.