"Social classes Political aspects History 20th century." . . "démocratie vie politique 1945 / 1990." . . "Sociale stratificatie." . . "Geschichte 1945-1990." . . "Kiesgedrag." . . "Sociale klassen." . . "Social classes Political aspects." . . "Lutte des classes." . . "Social mobility." . . "Social mobility History 20th century." . . . . "Mobilité sociale 1945-1990." . . "Élections Statistiques." . . "Voting History 20th century." . . "Klassengesellschaft." . . "Wahlverhalten." . . "Stemgedrag." . . "Vote 1945-1990." . . "Sociologie électorale." . . "Classes sociales 20e siècle." . . "Klasse (Soziologie)" . . "Westerse wereld." . . . . . . "De democratische klassestrijd in twintig landen" . . . "The democratic class struggle in twenty countries : 1945-1990" . . "The democratic class struggle in twenty countries, 1945-1990"@en . "The democratic class struggle in twenty countries, 1945-1990" . . . . . . "The democratic class struggle in twenty countries 1945-1990 = De democratische klassestrijd in twintig landen 1945-1990" . . . . . . . . . . . "History"@en . "History" . . . . . . "Democratische klassestrijd in twintig landen 1945-1990" . . . . . . . . . . "The democratic class struggle in twenty countries 1945-1990" . "The democratic class struggle in twenty countries, 1945-1990 : De democratische klassestrijd in twintig landen, 1945-1990"@en . . . . . . . . . . "Proefschriften (vorm)" . "The democratic class struggle in twenty countries : 1945 - 1990 = De democratische klassestrijd in twintig landen" . . . . . "Soziale Klasse." . . "Classes sociales Aspect politique 1945-1990." . . "Westliche Welt." . . "1900 - 1999" . . "Voting." . . "Demokratie." . . "vie politique 1945 / 1990." . .