Subject
Soviet Union History
25
Soviet Union Politics and government
22
Russia Social life and customs
13
Russia History
12
Heads of state
10
Russian language English
10
Criticism and interpretation
9
Soviet Union Social conditions
9
World War, 1939-1945
9
Communism
8
Russian language
8
Russian language Grammar
8
Russian literature
8
Russian poetry
8
Short stories, Russian
8
Political prisoners
7
Radioisotopes Industrial applications
7
Russian literature History and criticism
7
Uranium ores
7
Authors, Russian
6
Geochemistry
6
Geometry
6
Jewish refugees
6
Jews, Russian Cultural assimilation
6
Russia
6
Russia Social conditions
6
Russian fiction
6
Acting
5
English language Russian
5
Geology
5
Geology, Stratigraphic
5
Physics
5
Prospecting
5
Revolutionaries
5
Russian drama
5
Soviet Union
5
Brothers
4
Chemistry, Physical and theoretical
4
Composers
4
Mathematical analysis
4
Murder
4
Nuclear energy
4
Prospecting Geophysical methods
4
Saint Petersburg (Russia)
4
Sedimentary rocks
4
Soviet Union Foreign relations
4
Statesmen
4
United States Foreign relations
4
Adultery
3
Art
3
more ...