Subjects
- Motion pictures -- Soviet Union1
- Religion1
- Reports1
- Revolutionaries -- Russia -- Biography1
- Revolutionaries -- Russia -- Correspondence1
- Revolutionaries -- Soviet Union1
- Revolutionaries -- Soviet Union -- Biography1
- Rorschach Test1
- Rumor1
- Russian Americans1
- Sexuality & culture1
- Socialism -- Georgia (Republic)1
- Socialism -- Russia -- History -- 20th century1
- Socialism -- Russia -- Periodicals1
- Socialism -- Soviet Union -- History1
- Sound recordings1
- Soviet wit and humor1
- Strikes and lockouts -- Europe -- History1
- Strikes and lockouts -- Russia -- History1
- United States -- Foreign relations -- Soviet Union1