Surveys (2) Social mobility (2) Social classes (2) Sociological aspects (2) Encuestas (2) Clases sociales (2) Movilidad social (2) Sociología (2) Sociologie (2) Mobilité sociale (2) Société (2) Enquêtes (2) Sociologie (2) Société (2) Mobilité sociale (2) Classes sociales (2) transition (2) société (2) Chine (2) Dynamics (1) Discipline (1) Propagation (1) History (1) Revival (1) Minors (1) Witnesses (1) Walking (1) Vision (1) Thought and thinking (1) State, The (1)