[Changes of society. Tendencies of modern social politic and a book from Ludwig Preller].
D004522:Educational Status; D007348:Insurance, Health; D011057:Politics; D011315:Preventive Medicine; D012936:Social Medicine; D012961:Sociology
Veränderung der Gesellschaft. Zu Tendenzen moderner Sozialpolitik und einem Buch von Ludwig Preller.