Education (1) Economic conditions (1) Dissertations (1) Assaying (1) Worms (1) Wealth (1) Social status (1) Occupational training (1) Numerals (1) Working class (1) Income (1) Impact (1) Hypothesis (1) Employment (Economic theory) (1) Embargo (1) Discussion (1) Causation (1) Blinds (1) Back (1) Authors (1) Universe (1) Vocational guidance (1) Measurement (1) Analysis (1) Positions (1) Training of (1) Estatus social (1) Formación ocupacional (1) Persianas (1) Números (1)