Columbia subject headings:
Communists--Soviet Union--Biography.
Revolutionaries--Soviet Union--Biography.
Trotsky, Leon, 1879-1940--Correspondence.
Trotsky, Leon, 1879-1940--Diaries.
Harvard subject headings:
Revolutionaries--Soviet Union--Correspondence
Revolutionaries--Soviet Union--Diaries.
Soviet Union--Politics and government--1917-1936.
Trotsky, Leon, 1879-1940--Correspondence.
Trotsky, Leon, 1879-1940--Diaries.
Princeton subject headings:
Revolutionaries--Soviet Union--Correspondence.
Revolutionaries--Soviet Union--Diaries.
Soviet Union--Politics and government--1917-1936.
Trotsky, Leon, 1879-1940--Correspondence.
Trotsky, Leon, 1879-1940--Diaries.