Places
- New York (N.Y.) -- History15
- New York (N.Y.) -- Social conditions15
- Russia -- Social life and customs -- 1533-191715
- Soviet Union -- History15
- Soviet Union -- History -- 1917-193615
- China -- Description and travel14
- Japan -- Religious life and customs13
- New York (N.Y.) -- Politics and government -- 1898-195113
- Soviet Union -- Emigration and immigration13
- Soviet Union -- Foreign relations -- United States13
- Soviet Union -- Politics and government13
- United States -- Economic conditions13
- New York (N.Y.) -- Politics and government12
- New York (State) -- Politics and government -- 1951-12
- Soviet Union -- History, Military12
- United States -- History -- Colonial period, ca. 1600-177512
- Russia -- History -- 1801-191711
- Soviet Union -- Study and teaching11
- United States -- History11
- China10