Economic conditions -- Politics and government -- 11 Social conditions 4 Yearbooks 3 Commerce -- 2 Congresses -- 2 Description and travel -- 2 more ... Periodicals 2 Politics and government 2 Social conditions -- 2 Adresses, essays, lecturers 1 Arts -- 1 Congresses 1 Economic forecasting -- 1 Economic policy -- 1 Emigration and immigration 1 Entrepreneurship -- 1 Foreign relations 1 Foreign relations -- 1 Periodicals -- 1 Public opinion 1 Public opinion -- 1 Public opinion. -- 1 Social -- 1 congresses 1 social conditions -- 1 less ...