Hennies, M. (2016). Was hätten wir getan?: Markus Lang 1877-1941 / Martina Hennies.
Chicago Style (17. basım) AtıfHennies, Martina. Was Hätten Wir Getan?: Markus Lang 1877-1941 / Martina Hennies. Perleberg, 2016.
MLA (8th ed.) AtıfHennies, Martina. Was Hätten Wir Getan?: Markus Lang 1877-1941 / Martina Hennies. 2016.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..