Columbia subject headings:
Harvard subject headings:
Germans--Soviet Union--Biography
Hygienists--Soviet Union--Social conditions.
Physicians--Soviet Union--Social conditions.
Soviet Union--History--1917-1936.
Soviet Union--History--Revolution, 1917-1921--Scouts and scouting.
Zeiss, Heinz, 1888-1949
Princeton subject headings:
Germans--Soviet Union--Biography.
Hygienists--Soviet Union--Social conditions.
Physicians--Soviet Union--Social conditions.
Soviet Union--History--1917-1936.
Soviet Union--History--Revolution, 1917-1921--Scouts and scouting.
Zeiss, Heinz, 1888-1949.