History 156 Law and legislation 94 Library classification schemes 65 Philosophy 58 Law 56 Human rights 50 India 41 Foreign trade regulation 40 Colonization 39 Women 38 Economics 37 Literature 37 Politics and government 37 Constitutional law 36 Mathematics 36 International law 33 Legal status, laws, etc 33 Social conditions 33 Agronomy 31 Social aspects 31 methods 31 Agricultural Extension 30 Economic development 30 History and criticism 30 Biotechnology 29 Novel 29 Physics 28 Engineering 27 Mass media 27 Soil Science and Agricultural Chemistry 27