Social sciences 173 Economic history 93 Economic conditions 89 Sociology 79 Publicación periódica 62 Publications pe ́riodiques 62 Social conditions 56 Research 55 Zeitschrift 55 Social service 52 Taxation 52 Economics 51 Sciences sociales 48 Management 43 Ciencias sociales 42 Women 41 Sociologie 38 Tributación 35 Conditions e ́conomiques 33 Social Work 32 City planning 31 Housing 31 Economic aspects 30 Periodicals 30 Social aspects 29 Culture 26 Philosophy 26 Welt 26 Regional planning 25 Transportation 25