Columbia subject headings:
Morozov, N. A. (Nikolaĭ Aleksandrovich), 1854-1946.
Political prisoners--Soviet Union--Biography.
Revolutionaries--Soviet Union--Biography.
Scientists--Soviet Union--Biography.
Harvard subject headings:
Morozov, N. A. (Nikolaĭ Aleksandrovich), 1854-1946.
Political prisoners--Soviet Union--Biography
Revolutionaries--Soviet Union--Biography
Scientists--Soviet Union--Biography
Princeton subject headings:
Morozov, N. A. (Nikolaĭ Aleksandrovich), 1854-1946.
Revolutionaries--Soviet Union--Biography.