Geck, L. H. A. (1937). New trends in social policy in Germany. International Labour Organization.
Citazione stile Chigago Style (17a edizione)Geck, Ludwig Heinrich Adolf. New Trends in Social Policy in Germany. International Labour Organization, 1937.
Citatione MLA (9a ed.)Geck, Ludwig Heinrich Adolf. New Trends in Social Policy in Germany. International Labour Organization, 1937.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.