Marion Beetschen
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Twentieth century (3) Suisse (2) Swiss (2) Vingtième siècle (2) XXe siècle (2) temps (durée) (1) modèle (1) éducation (1) économie (1) couverture (1) États-Unis (1) Education (1) Government ownership (1) Law and legislation (1) Article (1) Assaying (1) American influences (1) Terms and phrases (1) Terms and phrases (1) Nineteen nineties (1) Nineteen eighties (1) Nineteen sixties (1) Minors (1) Prosopography (1) World War, 1914-1918 (1) Universities and colleges (1) Time (1) Teachers (1) Science teachers (1) Science (1)