Arntz, H. (1959). Facts about Germany (2nd ed.). Press and Information Office of the Federal German Government.
Citazione stile Chigago Style (17a edizione)Arntz, Helmut. Facts About Germany. 2nd ed. Bonn: Press and Information Office of the Federal German Government, 1959.
Citatione MLA (8a ed.)Arntz, Helmut. Facts About Germany. 2nd ed. Press and Information Office of the Federal German Government, 1959.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.