History 191 Research 141 Methodology 88 Social sciences 83 Social aspects 81 ARTISTS 79 Economic conditions 57 Management 56 Social conditions 54 Law and legislation 52 Design and construction 51 PAINTING 51 Politics and government 49 Vocational education 48 Addresses, essays, lectures 46 Counterculture 43 Economic integration 39 Technique 37 Subculture periodicals 36 Economic aspects 35 HISTORY 35 Women 35 Mass media 33 Data processing 32 Pictorial works 32 Occupational training 31 History and criticism 30 Psychological aspects 30 Environmental aspects 29 Regional planning 29