Columbia subject headings:
Gruzenberg, O. O. (Oskar Osipovich), 1866-1940.
Jewish lawyers--Soviet Union--Biography.
Harvard subject headings:
Gruzenberg, O. O. (Oskar Osipovich), 1866-1940
Jewish lawyers--Soviet Union--Biography.
Princeton subject headings:
Gruzenberg, O. O. (Oskar Osipovich), 1866-1940.
Jewish lawyers--Soviet Union--Biography.