Sociology, Urban Cities and towns 60 Urbanization 18 City planning 16 Social conditions 15 Human ecology 10 Case studies 7 History 7 Research 6 City and town life 5 Congresses 5 Growth 5 Urban economics 5 Bibliography 4 Housing 4 Public opinion 4 Social classes 4 Social structure 4 Sociology, Rural 4 Economic conditions 3 Inner cities 3 Minorities 3 Social aspects 3 Study and teaching 3 Suburban life 3 Urban ecology 3 Working class 3 Church and the world 2 City churches 2 Community development, Urban 2