(1942). German withdrawal in the East: A study in vital German and Polish statistics. the Polish Research Centre.
Citazione stile Chigago Style (17a edizione)German Withdrawal in the East: A Study in Vital German and Polish Statistics. London: the Polish Research Centre, 1942.
Citatione MLA (9a ed.)German Withdrawal in the East: A Study in Vital German and Polish Statistics. the Polish Research Centre, 1942.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.