USA 22 India 5 History-USA 4 Social Sciences 4 UK 4 United States 4 American Constitution-- USA and World War 3 China 3 Constitution China 3 Constitution Great Britain 3 Constitution Switzerland 3 Constitution USA 3 Economics 3 Law 3 USSR 3 America 2 Constitution Australia 2 Constitution Canada 2 Constitution France 2 Constitution USSR 2 Constitution World 2 International relation 2 International relations 2 Terrorism 2 World 2 67-- This U.S.A: An Unexpected Family Poratrait Of 194 --296 Americans Drawn From The Census 1 Adaptive research 1 Adult education 1 Agri.research organization 1 Agricultural research USA 1