Hennies, M. (2016). Was hätten wir getan?: Markus Lang 1877-1941 / Martina Hennies.
Citazione stile Chigago Style (17a edizione)Hennies, Martina. Was Hätten Wir Getan?: Markus Lang 1877-1941 / Martina Hennies. Perleberg, 2016.
Citatione MLA (8a ed.)Hennies, Martina. Was Hätten Wir Getan?: Markus Lang 1877-1941 / Martina Hennies. 2016.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.